47866491 has 16 divisors (see below), whose sum is σ = 74646400. Its totient is φ = 30231144.

The previous prime is 47866471. The next prime is 47866513. The reversal of 47866491 is 19466874.

It is not a de Polignac number, because 47866491 - 2⁷ = 47866363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47866421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46141 + ... + 47166.

It is an arithmetic number, because the mean of its divisors is an integer number (4665400).

Almost surely, 2^47866491 is an apocalyptic number.

47866491 is a deficient number, since it is larger than the sum of its proper divisors (26779909).

47866491 is a wasteful number, since it uses less digits than its factorization.

47866491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93335 (or 93329 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 47866491 is about 6918.5613388912. The cubic root of 47866491 is about 363.0868585264.

The spelling of 47866491 in words is "forty-seven million, eight hundred sixty-six thousand, four hundred ninety-one".