87161607 has 24 divisors (see below), whose sum is σ = 142724400. Its totient is φ = 50813568.

The previous prime is 87161597. The next prime is 87161621. The reversal of 87161607 is 70616178.

It is a happy number.

It is not a de Polignac number, because 87161607 - 2⁸ = 87161351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87161647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17382 + ... + 21827.

It is an arithmetic number, because the mean of its divisors is an integer number (5946850).

Almost surely, 2^87161607 is an apocalyptic number.

87161607 is a deficient number, since it is larger than the sum of its proper divisors (55562793).

87161607 is a wasteful number, since it uses less digits than its factorization.

87161607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39247 (or 39244 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 87161607 is about 9336.0380783285. The cubic root of 87161607 is about 443.3789558014.

The spelling of 87161607 in words is "eighty-seven million, one hundred sixty-one thousand, six hundred seven".