87149610 has 24 divisors (see below), whose sum is σ = 226589220. Its totient is φ = 23239872.

The previous prime is 87149603. The next prime is 87149617. The reversal of 87149610 is 1694178.

It is an interprime number because it is at equal distance from previous prime (87149603) and next prime (87149617).

It can be written as a sum of positive squares in 2 ways, for example, as 79548561 + 7601049 = 8919^2 + 2757^2 .

It is not an unprimeable number, because it can be changed into a prime (87149617) 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, 484075 + ... + 484254.

Almost surely, 2^87149610 is an apocalyptic number.

87149610 is an abundant number, since it is smaller than the sum of its proper divisors (139439610).

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

87149610 is a wasteful number, since it uses less digits than its factorization.

87149610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968342 (or 968339 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 87149610 is about 9335.3955459852. The cubic root of 87149610 is about 443.3586125120.

The spelling of 87149610 in words is "eighty-seven million, one hundred forty-nine thousand, six hundred ten".