97431723 has 6 divisors (see below), whose sum is σ = 140734724. Its totient is φ = 64954476.

The previous prime is 97431707. The next prime is 97431773. The reversal of 97431723 is 32713479.

It is not a de Polignac number, because 97431723 - 2⁴ = 97431707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97431773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5412865 + ... + 5412882.

Almost surely, 2^97431723 is an apocalyptic number.

97431723 is a deficient number, since it is larger than the sum of its proper divisors (43303001).

97431723 is a wasteful number, since it uses less digits than its factorization.

97431723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825753 (or 10825750 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 97431723 is about 9870.7508832915. The cubic root of 97431723 is about 460.1507429714.

The spelling of 97431723 in words is "ninety-seven million, four hundred thirty-one thousand, seven hundred twenty-three".