931409361 has 15 divisors (see below), whose sum is σ = 1391775033. Its totient is φ = 620756460.

The previous prime is 931409249. The next prime is 931409363. The reversal of 931409361 is 163904139.

The square root of 931409361 is 30519.

It is a perfect power (a square), and thus also a powerful number.

931409361 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 931409361 - 2⁷ = 931409233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (931409363) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 272976 + ... + 276366.

Almost surely, 2^931409361 is an apocalyptic number.

931409361 is the 30519-th square number.

931409361 is the 15260-th centered octagonal number.

It is an amenable number.

931409361 is a deficient number, since it is larger than the sum of its proper divisors (460365672).

931409361 is an frugal number, since it uses more digits than its factorization.

931409361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The cubic root of 931409361 is about 976.5928330978.

Multiplying 931409361 by its sum of digits (36), we get a square (33530736996 = 183114²).

The spelling of 931409361 in words is "nine hundred thirty-one million, four hundred nine thousand, three hundred sixty-one".