31372006 has 16 divisors (see below), whose sum is σ = 47960640. Its totient is φ = 15387840.

The previous prime is 31372001. The next prime is 31372009. The reversal of 31372006 is 60027313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31372001) 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, 28050 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (2997540).

Almost surely, 2^31372006 is an apocalyptic number.

31372006 is a deficient number, since it is larger than the sum of its proper divisors (16588634).

31372006 is a wasteful number, since it uses less digits than its factorization.

31372006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 31372006 is about 5601.0718617065. The cubic root of 31372006 is about 315.3896446398.

Adding to 31372006 its reverse (60027313), we get a palindrome (91399319).

The spelling of 31372006 in words is "thirty-one million, three hundred seventy-two thousand, six".