87903994 has 16 divisors (see below), whose sum is σ = 139082400. Its totient is φ = 41552784.

The previous prime is 87903983. The next prime is 87904009. The reversal of 87903994 is 49930978.

It is a super-2 number, since 2×87903994² = 15454224322304072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18672 + ... + 22900.

It is an arithmetic number, because the mean of its divisors is an integer number (8692650).

Almost surely, 2^87903994 is an apocalyptic number.

87903994 is a deficient number, since it is larger than the sum of its proper divisors (51178406).

87903994 is a wasteful number, since it uses less digits than its factorization.

87903994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 87903994 is about 9375.7129862214. The cubic root of 87903994 is about 444.6342051392.

The spelling of 87903994 in words is "eighty-seven million, nine hundred three thousand, nine hundred ninety-four".