887490681 has 32 divisors (see below), whose sum is σ = 1476980736. Its totient is φ = 460512000.

The previous prime is 887490649. The next prime is 887490701. The reversal of 887490681 is 186094788.

It is not a de Polignac number, because 887490681 - 2⁵ = 887490649 is a prime.

It is a super-2 number, since 2×887490681² = 1575279417723687522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (887490601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282801 + ... + 285921.

It is an arithmetic number, because the mean of its divisors is an integer number (46155648).

Almost surely, 2^887490681 is an apocalyptic number.

It is an amenable number.

887490681 is a deficient number, since it is larger than the sum of its proper divisors (589490055).

887490681 is a wasteful number, since it uses less digits than its factorization.

887490681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 887490681 is about 29790.7818125003. The cubic root of 887490681 is about 960.9953077900.

The spelling of 887490681 in words is "eight hundred eighty-seven million, four hundred ninety thousand, six hundred eighty-one".