3972059905 has 8 divisors (see below), whose sum is σ = 5199787584. Its totient is φ = 2888770800.

The previous prime is 3972059899. The next prime is 3972059909. The reversal of 3972059905 is 5099502793.

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

It is a de Polignac number, because none of the positive numbers 2^k-3972059905 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3972059909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36109581 + ... + 36109690.

It is an arithmetic number, because the mean of its divisors is an integer number (649973448).

Almost surely, 2^3972059905 is an apocalyptic number.

It is an amenable number.

3972059905 is a deficient number, since it is larger than the sum of its proper divisors (1227727679).

3972059905 is a wasteful number, since it uses less digits than its factorization.

3972059905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72219287.

The product of its (nonzero) digits is 765450, while the sum is 49.

The square root of 3972059905 is about 63024.2802814915. The cubic root of 3972059905 is about 1583.6964014921.

The spelling of 3972059905 in words is "three billion, nine hundred seventy-two million, fifty-nine thousand, nine hundred five".