93639140 has 24 divisors (see below), whose sum is σ = 224734272. Its totient is φ = 32104800.

The previous prime is 93639137. The next prime is 93639167. The reversal of 93639140 is 4193639.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 93639140.

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, 334286 + ... + 334565.

It is an arithmetic number, because the mean of its divisors is an integer number (9363928).

Almost surely, 2^93639140 is an apocalyptic number.

It is an amenable number.

93639140 is an abundant number, since it is smaller than the sum of its proper divisors (131095132).

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

93639140 is a wasteful number, since it uses less digits than its factorization.

93639140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668867 (or 668865 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 93639140 is about 9676.7318863344. The cubic root of 93639140 is about 454.1010144793.

The spelling of 93639140 in words is "ninety-three million, six hundred thirty-nine thousand, one hundred forty".