87249416 has 8 divisors (see below), whose sum is σ = 163592670. Its totient is φ = 43624704.

The previous prime is 87249403. The next prime is 87249431. The reversal of 87249416 is 61494278.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 1612900 = 9254^2 + 1270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×87249416² = 15224921184682112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5453081 + ... + 5453096.

Almost surely, 2^87249416 is an apocalyptic number.

It is an amenable number.

87249416 is a deficient number, since it is larger than the sum of its proper divisors (76343254).

87249416 is a wasteful number, since it uses less digits than its factorization.

87249416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906183 (or 10906179 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 87249416 is about 9340.7395852791. The cubic root of 87249416 is about 443.5277965484.

The spelling of 87249416 in words is "eighty-seven million, two hundred forty-nine thousand, four hundred sixteen".