31460879 has 2 divisors, whose sum is σ = 31460880. Its totient is φ = 31460878.

The previous prime is 31460873. The next prime is 31460917. The reversal of 31460879 is 97806413.

It is an a-pointer prime, because the next prime (31460917) can be obtained adding 31460879 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31460879 - 2²⁴ = 14683663 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31460873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15730439 + 15730440.

It is an arithmetic number, because the mean of its divisors is an integer number (15730440).

Almost surely, 2^31460879 is an apocalyptic number.

31460879 is a deficient number, since it is larger than the sum of its proper divisors (1).

31460879 is an equidigital number, since it uses as much as digits as its factorization.

31460879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 31460879 is about 5608.9998217151. Note that the first 3 decimals coincide. The cubic root of 31460879 is about 315.6871837613.

The spelling of 31460879 in words is "thirty-one million, four hundred sixty thousand, eight hundred seventy-nine".