97919663 has 4 divisors (see below), whose sum is σ = 97944000. Its totient is φ = 97895328.

The previous prime is 97919651. The next prime is 97919687. The reversal of 97919663 is 36691979.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97919663 - 2⁶ = 97919599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97919363) 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, 4538 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (24486000).

Almost surely, 2^97919663 is an apocalyptic number.

97919663 is a deficient number, since it is larger than the sum of its proper divisors (24337).

97919663 is a wasteful number, since it uses less digits than its factorization.

97919663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24336.

The product of its digits is 551124, while the sum is 50.

The square root of 97919663 is about 9895.4364734457. The cubic root of 97919663 is about 460.9176122408.

The spelling of 97919663 in words is "ninety-seven million, nine hundred nineteen thousand, six hundred sixty-three".