47976891 has 8 divisors (see below), whose sum is σ = 64924224. Its totient is φ = 31507080.

The previous prime is 47976869. The next prime is 47976899. The reversal of 47976891 is 19867974.

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

It is not a de Polignac number, because 47976891 - 2⁷ = 47976763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47976899) 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, 119145 + ... + 119546.

It is an arithmetic number, because the mean of its divisors is an integer number (8115528).

Almost surely, 2^47976891 is an apocalyptic number.

47976891 is a deficient number, since it is larger than the sum of its proper divisors (16947333).

47976891 is a wasteful number, since it uses less digits than its factorization.

47976891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238761.

The product of its digits is 762048, while the sum is 51.

The square root of 47976891 is about 6926.5352810767. The cubic root of 47976891 is about 363.3657872048.

The spelling of 47976891 in words is "forty-seven million, nine hundred seventy-six thousand, eight hundred ninety-one".