87506738 has 24 divisors (see below), whose sum is σ = 147996720. Its totient is φ = 38483400.

The previous prime is 87506737. The next prime is 87506747. The reversal of 87506738 is 83760578.

It is not an unprimeable number, because it can be changed into a prime (87506737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19073 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (6166530).

Almost surely, 2^87506738 is an apocalyptic number.

87506738 is a deficient number, since it is larger than the sum of its proper divisors (60489982).

87506738 is a wasteful number, since it uses less digits than its factorization.

87506738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 87506738 is about 9354.5036212511. The cubic root of 87506738 is about 443.9633961924.

The spelling of 87506738 in words is "eighty-seven million, five hundred six thousand, seven hundred thirty-eight".