87448690 has 32 divisors (see below), whose sum is σ = 180455040. Its totient is φ = 29889024.

The previous prime is 87448687. The next prime is 87448703. The reversal of 87448690 is 9684478.

It is a happy number.

It is a super-2 number, since 2×87448690² = 15294546765432200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87448690.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22941 + ... + 26479.

It is an arithmetic number, because the mean of its divisors is an integer number (5639220).

Almost surely, 2^87448690 is an apocalyptic number.

87448690 is an abundant number, since it is smaller than the sum of its proper divisors (93006350).

87448690 is a wasteful number, since it uses less digits than its factorization.

87448690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 87448690 is about 9351.4004298821. The cubic root of 87448690 is about 443.8652060858.

The spelling of 87448690 in words is "eighty-seven million, four hundred forty-eight thousand, six hundred ninety".