39216772 has 12 divisors (see below), whose sum is σ = 78433600. Its totient is φ = 16807176.

The previous prime is 39216761. The next prime is 39216791. The reversal of 39216772 is 27761293.

39216772 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700272 + ... + 700327.

Almost surely, 2^39216772 is an apocalyptic number.

It is an amenable number.

39216772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39216772 is a wasteful number, since it uses less digits than its factorization.

39216772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400610 (or 1400608 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 39216772 is about 6262.3295984801. The cubic root of 39216772 is about 339.7482912096.

It can be divided in two parts, 39 and 216772, that added together give a triangular number (216811 = T₆₅₈).

The spelling of 39216772 in words is "thirty-nine million, two hundred sixteen thousand, seven hundred seventy-two".