925943981 has 16 divisors (see below), whose sum is σ = 1009485504. Its totient is φ = 845754624.

The previous prime is 925943971. The next prime is 925944007. The reversal of 925943981 is 189349529.

It is a happy number.

925943981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 925943981 - 2⁶ = 925943917 is a prime.

It is a super-2 number, since 2×925943981² = 1714744511900256722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925943951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276986 + ... + 280308.

It is an arithmetic number, because the mean of its divisors is an integer number (63092844).

Almost surely, 2^925943981 is an apocalyptic number.

It is an amenable number.

925943981 is a deficient number, since it is larger than the sum of its proper divisors (83541523).

925943981 is a wasteful number, since it uses less digits than its factorization.

925943981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its digits is 699840, while the sum is 50.

The square root of 925943981 is about 30429.3276462034. The cubic root of 925943981 is about 974.6789145659.

The spelling of 925943981 in words is "nine hundred twenty-five million, nine hundred forty-three thousand, nine hundred eighty-one".