47868779 has 8 divisors (see below), whose sum is σ = 54751968. Its totient is φ = 40996800.

The previous prime is 47868757. The next prime is 47868781. The reversal of 47868779 is 97786874.

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

It is a cyclic number.

It is not a de Polignac number, because 47868779 - 2⁸ = 47868523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47868749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709 + ... + 14505.

It is an arithmetic number, because the mean of its divisors is an integer number (6843996).

Almost surely, 2^47868779 is an apocalyptic number.

47868779 is a deficient number, since it is larger than the sum of its proper divisors (6883189).

47868779 is a wasteful number, since it uses less digits than its factorization.

47868779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605.

The product of its digits is 4741632, while the sum is 56.

The square root of 47868779 is about 6918.7266892110. The cubic root of 47868779 is about 363.0926435720.

The spelling of 47868779 in words is "forty-seven million, eight hundred sixty-eight thousand, seven hundred seventy-nine".