87262775 has 12 divisors (see below), whose sum is σ = 108475944. Its totient is φ = 69636000.

The previous prime is 87262771. The next prime is 87262787. The reversal of 87262775 is 57726278.

It is a happy number.

It is not a de Polignac number, because 87262775 - 2² = 87262771 is a prime.

It is a super-2 number, since 2×87262775² = 15229583801401250, 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 (87262771) 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, 6380 + ... + 14670.

It is an arithmetic number, because the mean of its divisors is an integer number (9039662).

Almost surely, 2^87262775 is an apocalyptic number.

87262775 is a deficient number, since it is larger than the sum of its proper divisors (21213169).

87262775 is a wasteful number, since it uses less digits than its factorization.

87262775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722 (or 8717 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 87262775 is about 9341.4546511772. The cubic root of 87262775 is about 443.5504319835.

The spelling of 87262775 in words is "eighty-seven million, two hundred sixty-two thousand, seven hundred seventy-five".