31679467 has 2 divisors, whose sum is σ = 31679468. Its totient is φ = 31679466.

The previous prime is 31679423. The next prime is 31679491. The reversal of 31679467 is 76497613.

It is a strong prime.

It is an emirp because it is prime and its reverse (76497613) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31679467 is a prime.

It is not a weakly prime, because it can be changed into another prime (31679497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15839733 + 15839734.

It is an arithmetic number, because the mean of its divisors is an integer number (15839734).

Almost surely, 2^31679467 is an apocalyptic number.

31679467 is a deficient number, since it is larger than the sum of its proper divisors (1).

31679467 is an equidigital number, since it uses as much as digits as its factorization.

31679467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 31679467 is about 5628.4515632632. The cubic root of 31679467 is about 316.4166212021.

The spelling of 31679467 in words is "thirty-one million, six hundred seventy-nine thousand, four hundred sixty-seven".