7942892939 has 4 divisors (see below), whose sum is σ = 7962900624. Its totient is φ = 7922885256.

The previous prime is 7942892891. The next prime is 7942892959. The reversal of 7942892939 is 9392982497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9392982497 = 1861 ⋅5047277.

It is a cyclic number.

It is not a de Polignac number, because 7942892939 - 2²⁴ = 7926115723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7942892959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10003247 + ... + 10004040.

It is an arithmetic number, because the mean of its divisors is an integer number (1990725156).

Almost surely, 2^7942892939 is an apocalyptic number.

7942892939 is a deficient number, since it is larger than the sum of its proper divisors (20007685).

7942892939 is a wasteful number, since it uses less digits than its factorization.

7942892939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20007684.

The product of its digits is 17635968, while the sum is 62.

The square root of 7942892939 is about 89122.9091704260. The cubic root of 7942892939 is about 1995.2297094600.

The spelling of 7942892939 in words is "seven billion, nine hundred forty-two million, eight hundred ninety-two thousand, nine hundred thirty-nine".