87620408 has 32 divisors (see below), whose sum is σ = 168480000. Its totient is φ = 42700512.

The previous prime is 87620399. The next prime is 87620417. The reversal of 87620408 is 80402678.

It is an interprime number because it is at equal distance from previous prime (87620399) and next prime (87620417).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175343 + ... + 175841.

It is an arithmetic number, because the mean of its divisors is an integer number (5265000).

Almost surely, 2^87620408 is an apocalyptic number.

It is an amenable number.

87620408 is a deficient number, since it is larger than the sum of its proper divisors (80859592).

87620408 is a wasteful number, since it uses less digits than its factorization.

87620408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 87620408 is about 9360.5773326222. The cubic root of 87620408 is about 444.1555470481.

The spelling of 87620408 in words is "eighty-seven million, six hundred twenty thousand, four hundred eight".