99967960 has 32 divisors (see below), whose sum is σ = 227039760. Its totient is φ = 39611776.

The previous prime is 99967937. The next prime is 99967961. The reversal of 99967960 is 6976999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99967961) 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, 7399 + ... + 15958.

Almost surely, 2^99967960 is an apocalyptic number.

It is an amenable number.

99967960 is an abundant number, since it is smaller than the sum of its proper divisors (127071800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99967960 is a wasteful number, since it uses less digits than its factorization.

99967960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23475 (or 23471 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 55.

The square root of 99967960 is about 9998.3978716592. The cubic root of 99967960 is about 464.1093058973.

It can be divided in two parts, 9996 and 7960, that added together give a square (17956 = 134²).

The spelling of 99967960 in words is "ninety-nine million, nine hundred sixty-seven thousand, nine hundred sixty".