1972938179 has 32 divisors (see below), whose sum is σ = 2208384000. Its totient is φ = 1754049024.

The previous prime is 1972938173. The next prime is 1972938181. The reversal of 1972938179 is 9718392791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1972938179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972938173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6971372 + ... + 6971654.

It is an arithmetic number, because the mean of its divisors is an integer number (69012000).

Almost surely, 2^1972938179 is an apocalyptic number.

1972938179 is a deficient number, since it is larger than the sum of its proper divisors (235445821).

1972938179 is a wasteful number, since it uses less digits than its factorization.

1972938179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587.

The product of its digits is 1714608, while the sum is 56.

The square root of 1972938179 is about 44417.7687305430. The cubic root of 1972938179 is about 1254.2125987811.

The spelling of 1972938179 in words is "one billion, nine hundred seventy-two million, nine hundred thirty-eight thousand, one hundred seventy-nine".