31469923 has 2 divisors, whose sum is σ = 31469924. Its totient is φ = 31469922.

The previous prime is 31469903. The next prime is 31469953. The reversal of 31469923 is 32996413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31469923 - 2⁹ = 31469411 is a prime.

It is not a weakly prime, because it can be changed into another prime (31469903) 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, 15734961 + 15734962.

It is an arithmetic number, because the mean of its divisors is an integer number (15734962).

Almost surely, 2^31469923 is an apocalyptic number.

31469923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31469923 is an equidigital number, since it uses as much as digits as its factorization.

31469923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 31469923 is about 5609.8059681240. The cubic root of 31469923 is about 315.7174308645.

The spelling of 31469923 in words is "thirty-one million, four hundred sixty-nine thousand, nine hundred twenty-three".