99990963 has 8 divisors (see below), whose sum is σ = 148134800. Its totient is φ = 66660624.

The previous prime is 99990929. The next prime is 99990967. The reversal of 99990963 is 36909999.

It is not a de Polignac number, because 99990963 - 2¹⁸ = 99728819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99990967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851658 + ... + 1851711.

It is an arithmetic number, because the mean of its divisors is an integer number (18516850).

Almost surely, 2^99990963 is an apocalyptic number.

99990963 is a deficient number, since it is larger than the sum of its proper divisors (48143837).

99990963 is a wasteful number, since it uses less digits than its factorization.

99990963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703378 (or 3703372 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 54.

The square root of 99990963 is about 9999.5481397911. The cubic root of 99990963 is about 464.1449009273.

The spelling of 99990963 in words is "ninety-nine million, nine hundred ninety thousand, nine hundred sixty-three".