31669037 has 6 divisors (see below), whose sum is σ = 32308362. Its totient is φ = 31031312.

The previous prime is 31669031. The next prime is 31669039. The reversal of 31669037 is 73096613.

It can be written as a sum of positive squares in 3 ways, for example, as 17161 + 31651876 = 131^2 + 5626^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31669037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31668988 and 31669006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31669031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40583 + ... + 41355.

It is an arithmetic number, because the mean of its divisors is an integer number (5384727).

Almost surely, 2^31669037 is an apocalyptic number.

It is an amenable number.

31669037 is a deficient number, since it is larger than the sum of its proper divisors (639325).

31669037 is an frugal number, since it uses more digits than its factorization.

31669037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 31669037 is about 5627.5249444138. The cubic root of 31669037 is about 316.3818922128.

The spelling of 31669037 in words is "thirty-one million, six hundred sixty-nine thousand, thirty-seven".