97423865 has 16 divisors (see below), whose sum is σ = 145756800. Its totient is φ = 60731520.

The previous prime is 97423861. The next prime is 97423867. The reversal of 97423865 is 56832479.

It is not a de Polignac number, because 97423865 - 2² = 97423861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97423861) 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, 126140 + ... + 126909.

It is an arithmetic number, because the mean of its divisors is an integer number (9109800).

Almost surely, 2^97423865 is an apocalyptic number.

It is an amenable number.

97423865 is a deficient number, since it is larger than the sum of its proper divisors (48332935).

97423865 is a wasteful number, since it uses less digits than its factorization.

97423865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253072.

The product of its digits is 362880, while the sum is 44.

The square root of 97423865 is about 9870.3528305730. The cubic root of 97423865 is about 460.1383720459.

The spelling of 97423865 in words is "ninety-seven million, four hundred twenty-three thousand, eight hundred sixty-five".