97698641 has 4 divisors (see below), whose sum is σ = 101946432. Its totient is φ = 93450852.

The previous prime is 97698617. The next prime is 97698647. The reversal of 97698641 is 14689679.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97698641 - 2²² = 93504337 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 97698641.

It is not an unprimeable number, because it can be changed into a prime (97698647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123861 + ... + 2123906.

It is an arithmetic number, because the mean of its divisors is an integer number (25486608).

Almost surely, 2^97698641 is an apocalyptic number.

It is an amenable number.

97698641 is a deficient number, since it is larger than the sum of its proper divisors (4247791).

97698641 is a wasteful number, since it uses less digits than its factorization.

97698641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247790.

The product of its digits is 653184, while the sum is 50.

The square root of 97698641 is about 9884.2622891139. The cubic root of 97698641 is about 460.5705601302.

The spelling of 97698641 in words is "ninety-seven million, six hundred ninety-eight thousand, six hundred forty-one".