97644741 has 4 divisors (see below), whose sum is σ = 130192992. Its totient is φ = 65096492.

The previous prime is 97644697. The next prime is 97644749. The reversal of 97644741 is 14744679.

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 97644741 - 2⁹ = 97644229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97644693 and 97644702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97644749) 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, 16274121 + ... + 16274126.

It is an arithmetic number, because the mean of its divisors is an integer number (32548248).

Almost surely, 2^97644741 is an apocalyptic number.

It is an amenable number.

97644741 is a deficient number, since it is larger than the sum of its proper divisors (32548251).

97644741 is a wasteful number, since it uses less digits than its factorization.

97644741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32548250.

The product of its digits is 169344, while the sum is 42.

The square root of 97644741 is about 9881.5353564110. The cubic root of 97644741 is about 460.4858461581.

The spelling of 97644741 in words is "ninety-seven million, six hundred forty-four thousand, seven hundred forty-one".