97752643 has 4 divisors (see below), whose sum is σ = 97782048. Its totient is φ = 97723240.

The previous prime is 97752637. The next prime is 97752647. The reversal of 97752643 is 34625779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34625779 = 79 ⋅438301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97752643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97752643.

It is not an unprimeable number, because it can be changed into a prime (97752647) 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, 8971 + ... + 16612.

It is an arithmetic number, because the mean of its divisors is an integer number (24445512).

Almost surely, 2^97752643 is an apocalyptic number.

97752643 is a deficient number, since it is larger than the sum of its proper divisors (29405).

97752643 is a wasteful number, since it uses less digits than its factorization.

97752643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29404.

The product of its digits is 317520, while the sum is 43.

The square root of 97752643 is about 9886.9936279943. The cubic root of 97752643 is about 460.6554031741.

The spelling of 97752643 in words is "ninety-seven million, seven hundred fifty-two thousand, six hundred forty-three".