87262971 has 4 divisors (see below), whose sum is σ = 116350632. Its totient is φ = 58175312.

The previous prime is 87262961. The next prime is 87262979. The reversal of 87262971 is 17926278.

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

It is a cyclic number.

It is not a de Polignac number, because 87262971 - 2⁶ = 87262907 is a prime.

It is a super-2 number, since 2×87262971² = 15229652215493682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87262979) 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, 14543826 + ... + 14543831.

It is an arithmetic number, because the mean of its divisors is an integer number (29087658).

Almost surely, 2^87262971 is an apocalyptic number.

87262971 is a deficient number, since it is larger than the sum of its proper divisors (29087661).

87262971 is a wasteful number, since it uses less digits than its factorization.

87262971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29087660.

The product of its digits is 84672, while the sum is 42.

The square root of 87262971 is about 9341.4651420428. The cubic root of 87262971 is about 443.5507640679.

The spelling of 87262971 in words is "eighty-seven million, two hundred sixty-two thousand, nine hundred seventy-one".