97654431 has 16 divisors (see below), whose sum is σ = 148947968. Its totient is φ = 55749600.

The previous prime is 97654423. The next prime is 97654439. The reversal of 97654431 is 13445679.

It is an interprime number because it is at equal distance from previous prime (97654423) and next prime (97654439).

It is not a de Polignac number, because 97654431 - 2³ = 97654423 is a prime.

It is a super-2 number, since 2×97654431² = 19072775787867522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 97654431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97654439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35226 + ... + 37896.

It is an arithmetic number, because the mean of its divisors is an integer number (9309248).

Almost surely, 2^97654431 is an apocalyptic number.

97654431 is a deficient number, since it is larger than the sum of its proper divisors (51293537).

97654431 is a wasteful number, since it uses less digits than its factorization.

97654431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422.

The product of its digits is 90720, while the sum is 39.

The square root of 97654431 is about 9882.0256526686. The cubic root of 97654431 is about 460.5010781109.

It can be divided in two parts, 9765 and 4431, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 97654431 in words is "ninety-seven million, six hundred fifty-four thousand, four hundred thirty-one".