3972813709 has 8 divisors (see below), whose sum is σ = 4035251648. Its totient is φ = 3910468320.

The previous prime is 3972813703. The next prime is 3972813763. The reversal of 3972813709 is 9073182793.

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

It is a cyclic number.

It is not a de Polignac number, because 3972813709 - 2³ = 3972813701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972813701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66064 + ... + 110950.

It is an arithmetic number, because the mean of its divisors is an integer number (504406456).

Almost surely, 2^3972813709 is an apocalyptic number.

It is an amenable number.

3972813709 is a deficient number, since it is larger than the sum of its proper divisors (62437939).

3972813709 is a wasteful number, since it uses less digits than its factorization.

3972813709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46275.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 3972813709 is about 63030.2602644159. The cubic root of 3972813709 is about 1583.7965779916.

The spelling of 3972813709 in words is "three billion, nine hundred seventy-two million, eight hundred thirteen thousand, seven hundred nine".