39797072 has 20 divisors (see below), whose sum is σ = 88122336. Its totient is φ = 17055840.

The previous prime is 39797057. The next prime is 39797111. The reversal of 39797072 is 27079793.

It is a congruent number.

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, 177554 + ... + 177777.

Almost surely, 2^39797072 is an apocalyptic number.

It is an amenable number.

39797072 is an abundant number, since it is smaller than the sum of its proper divisors (48325264).

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

39797072 is a wasteful number, since it uses less digits than its factorization.

39797072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355346 (or 355340 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 39797072 is about 6308.4920543661. The cubic root of 39797072 is about 341.4158718988.

The spelling of 39797072 in words is "thirty-nine million, seven hundred ninety-seven thousand, seventy-two".