97689544 has 8 divisors (see below), whose sum is σ = 183167910. Its totient is φ = 48844768.

The previous prime is 97689541. The next prime is 97689569. The reversal of 97689544 is 44598679.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87048900 + 10640644 = 9330^2 + 3262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 97689491 and 97689500.

It is not an unprimeable number, because it can be changed into a prime (97689541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105589 + ... + 6105604.

Almost surely, 2^97689544 is an apocalyptic number.

It is an amenable number.

97689544 is a deficient number, since it is larger than the sum of its proper divisors (85478366).

97689544 is a wasteful number, since it uses less digits than its factorization.

97689544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211199 (or 12211195 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 97689544 is about 9883.8021024300. The cubic root of 97689544 is about 460.5562646722.

The spelling of 97689544 in words is "ninety-seven million, six hundred eighty-nine thousand, five hundred forty-four".