31471089 has 8 divisors (see below), whose sum is σ = 45189312. Its totient is φ = 19366800.

The previous prime is 31471079. The next prime is 31471091. The reversal of 31471089 is 98017413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31471089 - 2⁸ = 31470833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31471079) 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 in 7 ways as a sum of consecutive naturals, for example, 403437 + ... + 403514.

It is an arithmetic number, because the mean of its divisors is an integer number (5648664).

Almost surely, 2^31471089 is an apocalyptic number.

31471089 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

31471089 is a deficient number, since it is larger than the sum of its proper divisors (13718223).

31471089 is a wasteful number, since it uses less digits than its factorization.

31471089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806967.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 31471089 is about 5609.9098923245. The cubic root of 31471089 is about 315.7213300582.

The spelling of 31471089 in words is "thirty-one million, four hundred seventy-one thousand, eighty-nine".