925984981 has 2 divisors, whose sum is σ = 925984982. Its totient is φ = 925984980.

The previous prime is 925984963. The next prime is 925985033. The reversal of 925984981 is 189489529.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925984900 + 81 = 30430^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 925984981 - 2⁵ = 925984949 is a prime.

It is a super-2 number, since 2×925984981² = 1714896370075140722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (925984921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462992490 + 462992491.

It is an arithmetic number, because the mean of its divisors is an integer number (462992491).

Almost surely, 2^925984981 is an apocalyptic number.

It is an amenable number.

925984981 is a deficient number, since it is larger than the sum of its proper divisors (1).

925984981 is an equidigital number, since it uses as much as digits as its factorization.

925984981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 55.

The square root of 925984981 is about 30430.0013309234. The cubic root of 925984981 is about 974.6933003339.

It can be divided in two parts, 9259849 and 81, that multiplied together give a square (750047769 = 27387²).

The spelling of 925984981 in words is "nine hundred twenty-five million, nine hundred eighty-four thousand, nine hundred eighty-one".