99620634 has 16 divisors (see below), whose sum is σ = 200286720. Its totient is φ = 33032640.

The previous prime is 99620623. The next prime is 99620669. The reversal of 99620634 is 43602699.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 99620592 and 99620601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42319 + ... + 44610.

It is an arithmetic number, because the mean of its divisors is an integer number (12517920).

Almost surely, 2^99620634 is an apocalyptic number.

99620634 is an abundant number, since it is smaller than the sum of its proper divisors (100666086).

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

99620634 is a wasteful number, since it uses less digits than its factorization.

99620634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87125.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 99620634 is about 9981.0136759750. The cubic root of 99620634 is about 463.5711858956.

The spelling of 99620634 in words is "ninety-nine million, six hundred twenty thousand, six hundred thirty-four".