97257406 has 4 divisors (see below), whose sum is σ = 145886112. Its totient is φ = 48628702.

The previous prime is 97257403. The next prime is 97257421. The reversal of 97257406 is 60475279.

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

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (97257403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24314350 + ... + 24314353.

It is an arithmetic number, because the mean of its divisors is an integer number (36471528).

Almost surely, 2^97257406 is an apocalyptic number.

97257406 is a deficient number, since it is larger than the sum of its proper divisors (48628706).

97257406 is a wasteful number, since it uses less digits than its factorization.

97257406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48628705.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 97257406 is about 9861.9169536151. The cubic root of 97257406 is about 459.8761575881.

The spelling of 97257406 in words is "ninety-seven million, two hundred fifty-seven thousand, four hundred six".