87513190 has 8 divisors (see below), whose sum is σ = 157523760. Its totient is φ = 35005272.

The previous prime is 87513187. The next prime is 87513191. The reversal of 87513190 is 9131578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87513190² = 15317116847952200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87513191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4375650 + ... + 4375669.

It is an arithmetic number, because the mean of its divisors is an integer number (19690470).

Almost surely, 2^87513190 is an apocalyptic number.

87513190 is a deficient number, since it is larger than the sum of its proper divisors (70010570).

87513190 is a wasteful number, since it uses less digits than its factorization.

87513190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751326.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 87513190 is about 9354.8484755233. The cubic root of 87513190 is about 443.9743072815.

The spelling of 87513190 in words is "eighty-seven million, five hundred thirteen thousand, one hundred ninety".