87350513 has 4 divisors (see below), whose sum is σ = 88654320. Its totient is φ = 86046708.

The previous prime is 87350509. The next prime is 87350521. The reversal of 87350513 is 31505378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31505378 = 2 ⋅15752689.

It is a cyclic number.

It is not a de Polignac number, because 87350513 - 2² = 87350509 is a prime.

It is a super-2 number, since 2×87350513² = 15260224242726338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87350513.

It is not an unprimeable number, because it can be changed into a prime (87350713) 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, 651803 + ... + 651936.

It is an arithmetic number, because the mean of its divisors is an integer number (22163580).

Almost surely, 2^87350513 is an apocalyptic number.

It is an amenable number.

87350513 is a deficient number, since it is larger than the sum of its proper divisors (1303807).

87350513 is a wasteful number, since it uses less digits than its factorization.

87350513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303806.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 87350513 is about 9346.1496350101. The cubic root of 87350513 is about 443.6990375118.

The spelling of 87350513 in words is "eighty-seven million, three hundred fifty thousand, five hundred thirteen".