31469889 has 16 divisors (see below), whose sum is σ = 45872064. Its totient is φ = 19032000.

The previous prime is 31469861. The next prime is 31469903. The reversal of 31469889 is 98896413.

It is not a de Polignac number, because 31469889 - 2⁵ = 31469857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31469849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23539 + ... + 24839.

It is an arithmetic number, because the mean of its divisors is an integer number (2867004).

Almost surely, 2^31469889 is an apocalyptic number.

It is an amenable number.

31469889 is a deficient number, since it is larger than the sum of its proper divisors (14402175).

31469889 is a wasteful number, since it uses less digits than its factorization.

31469889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048.

The product of its digits is 373248, while the sum is 48.

The square root of 31469889 is about 5609.8029377154. The cubic root of 31469889 is about 315.7173171644.

The spelling of 31469889 in words is "thirty-one million, four hundred sixty-nine thousand, eight hundred eighty-nine".