47874491 has 4 divisors (see below), whose sum is σ = 54713712. Its totient is φ = 41035272.

The previous prime is 47874487. The next prime is 47874517. The reversal of 47874491 is 19447874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19447874 = 2 ⋅9723937.

It is a cyclic number.

It is not a de Polignac number, because 47874491 - 2² = 47874487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47874451) 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, 3419600 + ... + 3419613.

It is an arithmetic number, because the mean of its divisors is an integer number (13678428).

Almost surely, 2^47874491 is an apocalyptic number.

47874491 is a deficient number, since it is larger than the sum of its proper divisors (6839221).

47874491 is an equidigital number, since it uses as much as digits as its factorization.

47874491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839220.

The product of its digits is 225792, while the sum is 44.

The square root of 47874491 is about 6919.1394696161. The cubic root of 47874491 is about 363.1070851540.

The spelling of 47874491 in words is "forty-seven million, eight hundred seventy-four thousand, four hundred ninety-one".