97257407 has 4 divisors (see below), whose sum is σ = 104738760. Its totient is φ = 89776056.

The previous prime is 97257403. The next prime is 97257421. The reversal of 97257407 is 70475279.

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 97257407 - 2² = 97257403 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 3740657 + ... + 3740682.

It is an arithmetic number, because the mean of its divisors is an integer number (26184690).

Almost surely, 2^97257407 is an apocalyptic number.

97257407 is a deficient number, since it is larger than the sum of its proper divisors (7481353).

97257407 is a wasteful number, since it uses less digits than its factorization.

97257407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481352.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 97257407 is about 9861.9170043151. The cubic root of 97257407 is about 459.8761591642.

The spelling of 97257407 in words is "ninety-seven million, two hundred fifty-seven thousand, four hundred seven".