93906638 has 24 divisors (see below), whose sum is σ = 164630592. Its totient is φ = 40055904.

The previous prime is 93906613. The next prime is 93906641. The reversal of 93906638 is 83660939.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19706 + ... + 24002.

It is an arithmetic number, because the mean of its divisors is an integer number (6859608).

Almost surely, 2^93906638 is an apocalyptic number.

93906638 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

93906638 is a deficient number, since it is larger than the sum of its proper divisors (70723954).

93906638 is a wasteful number, since it uses less digits than its factorization.

93906638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 93906638 is about 9690.5437411943. The cubic root of 93906638 is about 454.5330119964.

The spelling of 93906638 in words is "ninety-three million, nine hundred six thousand, six hundred thirty-eight".