31772006 has 8 divisors (see below), whose sum is σ = 54466320. Its totient is φ = 13616568.

The previous prime is 31771973. The next prime is 31772017. The reversal of 31772006 is 60027713.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134701 + ... + 1134728.

It is an arithmetic number, because the mean of its divisors is an integer number (6808290).

Almost surely, 2^31772006 is an apocalyptic number.

31772006 is a deficient number, since it is larger than the sum of its proper divisors (22694314).

31772006 is a wasteful number, since it uses less digits than its factorization.

31772006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269438.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 31772006 is about 5636.6662132860. Note that the first 3 decimals coincide. The cubic root of 31772006 is about 316.7244169221.

Adding to 31772006 its reverse (60027713), we get a palindrome (91799719).

The spelling of 31772006 in words is "thirty-one million, seven hundred seventy-two thousand, six".