93939930 has 48 divisors (see below), whose sum is σ = 279137664. Its totient is φ = 21471840.

The previous prime is 93939917. The next prime is 93939931. The reversal of 93939930 is 3993939.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (93939931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73926 + ... + 75185.

It is an arithmetic number, because the mean of its divisors is an integer number (5815368).

Almost surely, 2^93939930 is an apocalyptic number.

93939930 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

93939930 is an abundant number, since it is smaller than the sum of its proper divisors (185197734).

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

93939930 is a wasteful number, since it uses less digits than its factorization.

93939930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149131 (or 149128 counting only the distinct ones).

The product of its (nonzero) digits is 177147, while the sum is 45.

The square root of 93939930 is about 9692.2613460430. The cubic root of 93939930 is about 454.5867196840.

The spelling of 93939930 in words is "ninety-three million, nine hundred thirty-nine thousand, nine hundred thirty".