97752731 has 4 divisors (see below), whose sum is σ = 97779264. Its totient is φ = 97726200.

The previous prime is 97752689. The next prime is 97752751. The reversal of 97752731 is 13725779.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97752731 - 2¹⁸ = 97490587 is a prime.

It is a super-2 number, since 2×97752731² = 19111192835916722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97752751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6635 + ... + 15476.

It is an arithmetic number, because the mean of its divisors is an integer number (24444816).

Almost surely, 2^97752731 is an apocalyptic number.

97752731 is a deficient number, since it is larger than the sum of its proper divisors (26533).

97752731 is a wasteful number, since it uses less digits than its factorization.

97752731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26532.

The product of its digits is 92610, while the sum is 41.

The square root of 97752731 is about 9886.9980782844. The cubic root of 97752731 is about 460.6555414062.

The spelling of 97752731 in words is "ninety-seven million, seven hundred fifty-two thousand, seven hundred thirty-one".