87527799 has 12 divisors (see below), whose sum is σ = 127129912. Its totient is φ = 58028400.

The previous prime is 87527789. The next prime is 87527801. The reversal of 87527799 is 99772578.

It is not a de Polignac number, because 87527799 - 2¹² = 87523703 is a prime.

It is a super-2 number, since 2×87527799² = 15322231195568802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87527729) 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, 25237 + ... + 28494.

Almost surely, 2^87527799 is an apocalyptic number.

87527799 is a deficient number, since it is larger than the sum of its proper divisors (39602113).

87527799 is a wasteful number, since it uses less digits than its factorization.

87527799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53918 (or 53915 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 87527799 is about 9355.6292679862. The cubic root of 87527799 is about 443.9990108330. Note that the first 3 decimals are identical.

The spelling of 87527799 in words is "eighty-seven million, five hundred twenty-seven thousand, seven hundred ninety-nine".