87393934 has 4 divisors (see below), whose sum is σ = 131090904. Its totient is φ = 43696966.

The previous prime is 87393871. The next prime is 87393947. The reversal of 87393934 is 43939378.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 21848482 + ... + 21848485.

It is an arithmetic number, because the mean of its divisors is an integer number (32772726).

Almost surely, 2^87393934 is an apocalyptic number.

87393934 is a deficient number, since it is larger than the sum of its proper divisors (43696970).

87393934 is a wasteful number, since it uses less digits than its factorization.

87393934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43696969.

The product of its digits is 489888, while the sum is 46.

The square root of 87393934 is about 9348.4722816084. The cubic root of 87393934 is about 443.7725446722.

The spelling of 87393934 in words is "eighty-seven million, three hundred ninety-three thousand, nine hundred thirty-four".