39871072 has 12 divisors (see below), whose sum is σ = 78496236. Its totient is φ = 19935520.

The previous prime is 39871061. The next prime is 39871081. The reversal of 39871072 is 27017893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622954 + ... + 623017.

It is an arithmetic number, because the mean of its divisors is an integer number (6541353).

Almost surely, 2^39871072 is an apocalyptic number.

39871072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39871072 is a deficient number, since it is larger than the sum of its proper divisors (38625164).

39871072 is a wasteful number, since it uses less digits than its factorization.

39871072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245981 (or 1245973 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 39871072 is about 6314.3544404792. The cubic root of 39871072 is about 341.6273542183.

The spelling of 39871072 in words is "thirty-nine million, eight hundred seventy-one thousand, seventy-two".