87254887 has 4 divisors (see below), whose sum is σ = 87882760. Its totient is φ = 86627016.

The previous prime is 87254873. The next prime is 87254891. The reversal of 87254887 is 78845278.

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 87254887 - 2¹¹ = 87252839 is a prime.

It is a super-2 number, since 2×87254887² = 15226830610765538, 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 87254887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87254807) 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, 313728 + ... + 314005.

It is an arithmetic number, because the mean of its divisors is an integer number (21970690).

Almost surely, 2^87254887 is an apocalyptic number.

87254887 is a deficient number, since it is larger than the sum of its proper divisors (627873).

87254887 is a wasteful number, since it uses less digits than its factorization.

87254887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627872.

The product of its digits is 1003520, while the sum is 49.

The square root of 87254887 is about 9341.0324375842. The cubic root of 87254887 is about 443.5370668678.

The spelling of 87254887 in words is "eighty-seven million, two hundred fifty-four thousand, eight hundred eighty-seven".