99990964 has 12 divisors (see below), whose sum is σ = 179252388. Its totient is φ = 48776000.

The previous prime is 99990929. The next prime is 99990967. The reversal of 99990964 is 46909999.

It can be written as a sum of positive squares in 2 ways, for example, as 12194064 + 87796900 = 3492^2 + 9370^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99990967) 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, 304687 + ... + 305014.

It is an arithmetic number, because the mean of its divisors is an integer number (14937699).

Almost surely, 2^99990964 is an apocalyptic number.

It is an amenable number.

99990964 is a deficient number, since it is larger than the sum of its proper divisors (79261424).

99990964 is a wasteful number, since it uses less digits than its factorization.

99990964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609746 (or 609744 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 99990964 is about 9999.5481897934. The cubic root of 99990964 is about 464.1449024746.

The spelling of 99990964 in words is "ninety-nine million, nine hundred ninety thousand, nine hundred sixty-four".