3972308 has 18 divisors (see below), whose sum is σ = 7086618. Its totient is φ = 1948240.

The previous prime is 3972301. The next prime is 3972329. The reversal of 3972308 is 8032793.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 20164 = 1988^2 + 142^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20066 + ... + 20262.

It is an arithmetic number, because the mean of its divisors is an integer number (393701).

Almost surely, 2^3972308 is an apocalyptic number.

It is an amenable number.

3972308 is a deficient number, since it is larger than the sum of its proper divisors (3114310).

3972308 is a wasteful number, since it uses less digits than its factorization.

3972308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 3972308 is about 1993.0649763618. The cubic root of 3972308 is about 158.3729373383.

The spelling of 3972308 in words is "three million, nine hundred seventy-two thousand, three hundred eight".