97999967 has 16 divisors (see below), whose sum is σ = 113688960. Its totient is φ = 83698272.

The previous prime is 97999949. The next prime is 98000027. The reversal of 97999967 is 76999979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97999967 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 (97999927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6008 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (7105560).

Almost surely, 2^97999967 is an apocalyptic number.

97999967 is a deficient number, since it is larger than the sum of its proper divisors (15688993).

97999967 is a wasteful number, since it uses less digits than its factorization.

97999967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302.

The product of its digits is 17360406, while the sum is 65.

The square root of 97999967 is about 9899.4932698598. The cubic root of 97999967 is about 461.0435774560.

The spelling of 97999967 in words is "ninety-seven million, nine hundred ninety-nine thousand, nine hundred sixty-seven".