93139887 has 8 divisors (see below), whose sum is σ = 124236720. Its totient is φ = 62068160.

The previous prime is 93139883. The next prime is 93139927. The reversal of 93139887 is 78893139.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 93139887 - 2² = 93139883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93139883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5587 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (15529590).

Almost surely, 2^93139887 is an apocalyptic number.

93139887 is a deficient number, since it is larger than the sum of its proper divisors (31096833).

93139887 is a wasteful number, since it uses less digits than its factorization.

93139887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12553.

The product of its digits is 326592, while the sum is 48.

The square root of 93139887 is about 9650.9008387818. The cubic root of 93139887 is about 453.2925369982.

The spelling of 93139887 in words is "ninety-three million, one hundred thirty-nine thousand, eight hundred eighty-seven".