99409624 has 16 divisors (see below), whose sum is σ = 186719400. Its totient is φ = 49617792.

The previous prime is 99409621. The next prime is 99409627. The reversal of 99409624 is 42690499.

It is an interprime number because it is at equal distance from previous prime (99409621) and next prime (99409627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99409621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5889 + ... + 15280.

Almost surely, 2^99409624 is an apocalyptic number.

It is an amenable number.

99409624 is a deficient number, since it is larger than the sum of its proper divisors (87309776).

99409624 is a wasteful number, since it uses less digits than its factorization.

99409624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21762 (or 21758 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 99409624 is about 9970.4375029384. The cubic root of 99409624 is about 463.2436523402.

The spelling of 99409624 in words is "ninety-nine million, four hundred nine thousand, six hundred twenty-four".