47877455 has 4 divisors (see below), whose sum is σ = 57452952. Its totient is φ = 38301960.

The previous prime is 47877451. The next prime is 47877469. The reversal of 47877455 is 55477874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47877455 - 2² = 47877451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47877451) 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, 4787741 + ... + 4787750.

It is an arithmetic number, because the mean of its divisors is an integer number (14363238).

Almost surely, 2^47877455 is an apocalyptic number.

47877455 is a deficient number, since it is larger than the sum of its proper divisors (9575497).

47877455 is an equidigital number, since it uses as much as digits as its factorization.

47877455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575496.

The product of its digits is 1097600, while the sum is 47.

The square root of 47877455 is about 6919.3536547860. The cubic root of 47877455 is about 363.1145785474.

The spelling of 47877455 in words is "forty-seven million, eight hundred seventy-seven thousand, four hundred fifty-five".