31479467 has 2 divisors, whose sum is σ = 31479468. Its totient is φ = 31479466.

The previous prime is 31479457. The next prime is 31479491. The reversal of 31479467 is 76497413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31479467 - 2¹² = 31475371 is a prime.

It is not a weakly prime, because it can be changed into another prime (31479457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15739733 + 15739734.

It is an arithmetic number, because the mean of its divisors is an integer number (15739734).

Almost surely, 2^31479467 is an apocalyptic number.

31479467 is a deficient number, since it is larger than the sum of its proper divisors (1).

31479467 is an equidigital number, since it uses as much as digits as its factorization.

31479467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 41.

The square root of 31479467 is about 5610.6565569459. The cubic root of 31479467 is about 315.7493439031.

The spelling of 31479467 in words is "thirty-one million, four hundred seventy-nine thousand, four hundred sixty-seven".