97327731 has 8 divisors (see below), whose sum is σ = 130314240. Its totient is φ = 64613192.

The previous prime is 97327729. The next prime is 97327739. The reversal of 97327731 is 13772379.

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 97327731 - 2¹ = 97327729 is a prime.

It is a super-2 number, since 2×97327731² = 18945374443216722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97327731.

It is not an unprimeable number, because it can be changed into a prime (97327739) 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, 67155 + ... + 68588.

It is an arithmetic number, because the mean of its divisors is an integer number (16289280).

Almost surely, 2^97327731 is an apocalyptic number.

97327731 is a deficient number, since it is larger than the sum of its proper divisors (32986509).

97327731 is a wasteful number, since it uses less digits than its factorization.

97327731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135985.

The product of its digits is 55566, while the sum is 39.

The square root of 97327731 is about 9865.4817925938. The cubic root of 97327731 is about 459.9869734811.

The spelling of 97327731 in words is "ninety-seven million, three hundred twenty-seven thousand, seven hundred thirty-one".