97713391 has 8 divisors (see below), whose sum is σ = 98621840. Its totient is φ = 96809472.

The previous prime is 97713389. The next prime is 97713437. The reversal of 97713391 is 19331779.

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 97713391 - 2¹ = 97713389 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 (97713311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53725 + ... + 55513.

It is an arithmetic number, because the mean of its divisors is an integer number (12327730).

Almost surely, 2^97713391 is an apocalyptic number.

97713391 is a deficient number, since it is larger than the sum of its proper divisors (908449).

97713391 is a wasteful number, since it uses less digits than its factorization.

97713391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 35721, while the sum is 40.

The square root of 97713391 is about 9885.0083965569. The cubic root of 97713391 is about 460.5937370950.

The spelling of 97713391 in words is "ninety-seven million, seven hundred thirteen thousand, three hundred ninety-one".