97856407 has 8 divisors (see below), whose sum is σ = 106995600. Its totient is φ = 88757760.

The previous prime is 97856393. The next prime is 97856443. The reversal of 97856407 is 70465879.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97856407 - 2¹¹ = 97854359 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 (97856477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4968 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (13374450).

Almost surely, 2^97856407 is an apocalyptic number.

97856407 is a deficient number, since it is larger than the sum of its proper divisors (9139193).

97856407 is a wasteful number, since it uses less digits than its factorization.

97856407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20273.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 97856407 is about 9892.2397362781. The cubic root of 97856407 is about 460.8183400959.

The spelling of 97856407 in words is "ninety-seven million, eight hundred fifty-six thousand, four hundred seven".