87628630 has 32 divisors (see below), whose sum is σ = 165288960. Its totient is φ = 33406560.

The previous prime is 87628621. The next prime is 87628631. The reversal of 87628630 is 3682678.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87628631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18661 + ... + 22879.

It is an arithmetic number, because the mean of its divisors is an integer number (5165280).

Almost surely, 2^87628630 is an apocalyptic number.

87628630 is a deficient number, since it is larger than the sum of its proper divisors (77660330).

87628630 is a wasteful number, since it uses less digits than its factorization.

87628630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 87628630 is about 9361.0165046324. The cubic root of 87628630 is about 444.1694392938.

The spelling of 87628630 in words is "eighty-seven million, six hundred twenty-eight thousand, six hundred thirty".