87620407 has 8 divisors (see below), whose sum is σ = 100195200. Its totient is φ = 75060024.

The previous prime is 87620399. The next prime is 87620417. The reversal of 87620407 is 70402678.

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 87620407 - 2³ = 87620399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87620417) by changing a digit.

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, 18444 + ... + 22702.

It is an arithmetic number, because the mean of its divisors is an integer number (12524400).

Almost surely, 2^87620407 is an apocalyptic number.

87620407 is a deficient number, since it is larger than the sum of its proper divisors (12574793).

87620407 is a wasteful number, since it uses less digits than its factorization.

87620407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 87620407 is about 9360.5772792067. The cubic root of 87620407 is about 444.1555453585.

The spelling of 87620407 in words is "eighty-seven million, six hundred twenty thousand, four hundred seven".