97980646 has 16 divisors (see below), whose sum is σ = 152064000. Its totient is φ = 47300040.

The previous prime is 97980643. The next prime is 97980661. The reversal of 97980646 is 64608979.

It is a self number, because there is not a number n which added to its sum of digits gives 97980646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97980643) 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, 29355 + ... + 32521.

It is an arithmetic number, because the mean of its divisors is an integer number (9504000).

Almost surely, 2^97980646 is an apocalyptic number.

97980646 is a deficient number, since it is larger than the sum of its proper divisors (54083354).

97980646 is a wasteful number, since it uses less digits than its factorization.

97980646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 97980646 is about 9898.5173637268. The cubic root of 97980646 is about 461.0132767369.

The spelling of 97980646 in words is "ninety-seven million, nine hundred eighty thousand, six hundred forty-six".