87528007 has 4 divisors (see below), whose sum is σ = 100032016. Its totient is φ = 75024000.

The previous prime is 87527987. The next prime is 87528011. The reversal of 87528007 is 70082578.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87528007 is a prime.

It is a super-2 number, since 2×87528007² = 15322304018784098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87528037) 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, 6251994 + ... + 6252007.

It is an arithmetic number, because the mean of its divisors is an integer number (25008004).

Almost surely, 2^87528007 is an apocalyptic number.

87528007 is a deficient number, since it is larger than the sum of its proper divisors (12504009).

87528007 is a wasteful number, since it uses less digits than its factorization.

87528007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504008.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 87528007 is about 9355.6403842816. The cubic root of 87528007 is about 443.9993625373. Note that the first 3 decimals are identical.

It can be divided in two parts, 875 and 28007, that added together give a palindrome (28882).

The spelling of 87528007 in words is "eighty-seven million, five hundred twenty-eight thousand, seven".