87788434 has 16 divisors (see below), whose sum is σ = 134236800. Its totient is φ = 43050384.

The previous prime is 87788429. The next prime is 87788453. The reversal of 87788434 is 43488778.

It is a happy 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, 23037 + ... + 26575.

It is an arithmetic number, because the mean of its divisors is an integer number (8389800).

Almost surely, 2^87788434 is an apocalyptic number.

87788434 is a deficient number, since it is larger than the sum of its proper divisors (46448366).

87788434 is a wasteful number, since it uses less digits than its factorization.

87788434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777.

The product of its digits is 1204224, while the sum is 49.

The square root of 87788434 is about 9369.5482281698. The cubic root of 87788434 is about 444.4392786113.

The spelling of 87788434 in words is "eighty-seven million, seven hundred eighty-eight thousand, four hundred thirty-four".