925681 has 8 divisors (see below), whose sum is σ = 975744. Its totient is φ = 876480.

The previous prime is 925679. The next prime is 925697. The reversal of 925681 is 186529.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 925681 - 2¹ = 925679 is a prime.

It is a super-2 number, since 2×925681² = 1713770627522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (925621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3721 + ... + 3961.

It is an arithmetic number, because the mean of its divisors is an integer number (121968).

2⁹²⁵⁶⁸¹ is an apocalyptic number.

925681 is the 609-th centered pentagonal number.

It is an amenable number.

925681 is a deficient number, since it is larger than the sum of its proper divisors (50063).

925681 is a wasteful number, since it uses less digits than its factorization.

925681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 4320, while the sum is 31.

The square root of 925681 is about 962.1231729877. The cubic root of 925681 is about 97.4586631695.

The spelling of 925681 in words is "nine hundred twenty-five thousand, six hundred eighty-one".