97673431 has 4 divisors (see below), whose sum is σ = 97740864. Its totient is φ = 97606000.

The previous prime is 97673423. The next prime is 97673437. The reversal of 97673431 is 13437679.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97673431 - 2³ = 97673423 is a prime.

It is a super-2 number, since 2×97673431² = 19080198246623522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (97673437) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31495 + ... + 34456.

It is an arithmetic number, because the mean of its divisors is an integer number (24435216).

Almost surely, 2^97673431 is an apocalyptic number.

97673431 is a deficient number, since it is larger than the sum of its proper divisors (67433).

97673431 is a wasteful number, since it uses less digits than its factorization.

97673431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67432.

The product of its digits is 95256, while the sum is 40.

The square root of 97673431 is about 9882.9869472746. The cubic root of 97673431 is about 460.5309417604.

The spelling of 97673431 in words is "ninety-seven million, six hundred seventy-three thousand, four hundred thirty-one".