3672721923 has 16 divisors (see below), whose sum is σ = 5296693920. Its totient is φ = 2250261504.

The previous prime is 3672721919. The next prime is 3672721933. The reversal of 3672721923 is 3291272763.

It is not a de Polignac number, because 3672721923 - 2² = 3672721919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3672721933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196686 + ... + 214547.

It is an arithmetic number, because the mean of its divisors is an integer number (331043370).

Almost surely, 2^3672721923 is an apocalyptic number.

3672721923 is a deficient number, since it is larger than the sum of its proper divisors (1623971997).

3672721923 is a wasteful number, since it uses less digits than its factorization.

3672721923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411478.

The product of its digits is 190512, while the sum is 42.

The square root of 3672721923 is about 60602.9860897959. The cubic root of 3672721923 is about 1542.8700516544.

The spelling of 3672721923 in words is "three billion, six hundred seventy-two million, seven hundred twenty-one thousand, nine hundred twenty-three".