97197644 has 24 divisors (see below), whose sum is σ = 173457648. Its totient is φ = 47643840.

The previous prime is 97197629. The next prime is 97197649. The reversal of 97197644 is 44679179.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (97197649) 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, 113522 + ... + 114374.

It is an arithmetic number, because the mean of its divisors is an integer number (7227402).

Almost surely, 2^97197644 is an apocalyptic number.

It is an amenable number.

97197644 is a deficient number, since it is larger than the sum of its proper divisors (76260004).

97197644 is a wasteful number, since it uses less digits than its factorization.

97197644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1383 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 97197644 is about 9858.8865497073. The cubic root of 97197644 is about 459.7819445398.

The spelling of 97197644 in words is "ninety-seven million, one hundred ninety-seven thousand, six hundred forty-four".