31368669 has 8 divisors (see below), whose sum is σ = 41879712. Its totient is φ = 20885040.

The previous prime is 31368661. The next prime is 31368697. The reversal of 31368669 is 96686313.

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

It is not a de Polignac number, because 31368669 - 2³ = 31368661 is a prime.

It is a super-2 number, since 2×31368669² = 1967986789663122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31368669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4014 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (5234964).

Almost surely, 2^31368669 is an apocalyptic number.

It is an amenable number.

31368669 is a deficient number, since it is larger than the sum of its proper divisors (10511043).

31368669 is a wasteful number, since it uses less digits than its factorization.

31368669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707.

The product of its digits is 139968, while the sum is 42.

The square root of 31368669 is about 5600.7739643731. The cubic root of 31368669 is about 315.3784617128.

The spelling of 31368669 in words is "thirty-one million, three hundred sixty-eight thousand, six hundred sixty-nine".