87454428 has 24 divisors (see below), whose sum is σ = 204234240. Its totient is φ = 29126640.

The previous prime is 87454427. The next prime is 87454447. The reversal of 87454428 is 82445478.

It is a self number, because there is not a number n which added to its sum of digits gives 87454428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87454427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16533 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (8509760).

Almost surely, 2^87454428 is an apocalyptic number.

It is an amenable number.

87454428 is an abundant number, since it is smaller than the sum of its proper divisors (116779812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87454428 is a wasteful number, since it uses less digits than its factorization.

87454428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217 (or 6215 counting only the distinct ones).

The product of its digits is 286720, while the sum is 42.

The square root of 87454428 is about 9351.7072238175. The cubic root of 87454428 is about 443.8749140370.

The spelling of 87454428 in words is "eighty-seven million, four hundred fifty-four thousand, four hundred twenty-eight".