31079471 has 2 divisors, whose sum is σ = 31079472. Its totient is φ = 31079470.

The previous prime is 31079467. The next prime is 31079507. The reversal of 31079471 is 17497013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31079471 - 2² = 31079467 is a prime.

It is a super-3 number, since 3×31079471³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31079401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15539735 + 15539736.

It is an arithmetic number, because the mean of its divisors is an integer number (15539736).

Almost surely, 2^31079471 is an apocalyptic number.

31079471 is a deficient number, since it is larger than the sum of its proper divisors (1).

31079471 is an equidigital number, since it uses as much as digits as its factorization.

31079471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 31079471 is about 5574.8965012814. The cubic root of 31079471 is about 314.4062755979.

The spelling of 31079471 in words is "thirty-one million, seventy-nine thousand, four hundred seventy-one".