87949396 has 18 divisors (see below), whose sum is σ = 154969850. Its totient is φ = 43674000.

The previous prime is 87949391. The next prime is 87949397. The reversal of 87949396 is 69394978.

It can be written as a sum of positive squares in only one way, i.e., 81649296 + 6300100 = 9036^2 + 2510^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87949391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251830 + ... + 252178.

Almost surely, 2^87949396 is an apocalyptic number.

It is an amenable number.

87949396 is a deficient number, since it is larger than the sum of its proper divisors (67020454).

87949396 is a wasteful number, since it uses less digits than its factorization.

87949396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 602 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 55.

The square root of 87949396 is about 9378.1339295192. The cubic root of 87949396 is about 444.7107424565.

The spelling of 87949396 in words is "eighty-seven million, nine hundred forty-nine thousand, three hundred ninety-six".