31472969 has 8 divisors (see below), whose sum is σ = 34425408. Its totient is φ = 28535760.

The previous prime is 31472963. The next prime is 31472983. The reversal of 31472969 is 96927413.

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

It is a de Polignac number, because none of the positive numbers 2^k-31472969 is a prime.

It is a super-2 number, since 2×31472969² = 1981095555349922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31472963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (4303176).

Almost surely, 2^31472969 is an apocalyptic number.

It is an amenable number.

31472969 is a deficient number, since it is larger than the sum of its proper divisors (2952439).

31472969 is a wasteful number, since it uses less digits than its factorization.

31472969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its digits is 81648, while the sum is 41.

The square root of 31472969 is about 5610.0774504458. The cubic root of 31472969 is about 315.7276167200.

It can be divided in two parts, 3147 and 2969, that added together give a palindrome (6116).

The spelling of 31472969 in words is "thirty-one million, four hundred seventy-two thousand, nine hundred sixty-nine".