7940929947 has 8 divisors (see below), whose sum is σ = 10767362880. Its totient is φ = 5204225160.

The previous prime is 7940929943. The next prime is 7940929991. The reversal of 7940929947 is 7499290497.

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

It is not a de Polignac number, because 7940929947 - 2² = 7940929943 is a prime.

It is a super-2 number, since 2×7940929947² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7940929943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22431829 + ... + 22432182.

It is an arithmetic number, because the mean of its divisors is an integer number (1345920360).

Almost surely, 2^7940929947 is an apocalyptic number.

7940929947 is a deficient number, since it is larger than the sum of its proper divisors (2826432933).

7940929947 is a wasteful number, since it uses less digits than its factorization.

7940929947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44864073.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The square root of 7940929947 is about 89111.8956537229. The cubic root of 7940929947 is about 1995.0653301136.

The spelling of 7940929947 in words is "seven billion, nine hundred forty million, nine hundred twenty-nine thousand, nine hundred forty-seven".