47811357 has 16 divisors (see below), whose sum is σ = 77271360. Its totient is φ = 28976400.

The previous prime is 47811341. The next prime is 47811383. The reversal of 47811357 is 75311874.

It is not a de Polignac number, because 47811357 - 2⁴ = 47811341 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47811557) 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, 80194 + ... + 80787.

It is an arithmetic number, because the mean of its divisors is an integer number (4829460).

Almost surely, 2^47811357 is an apocalyptic number.

It is an amenable number.

47811357 is a deficient number, since it is larger than the sum of its proper divisors (29460003).

47811357 is a wasteful number, since it uses less digits than its factorization.

47811357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161001 (or 160995 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 47811357 is about 6914.5756919713. The cubic root of 47811357 is about 362.9474003425.

The spelling of 47811357 in words is "forty-seven million, eight hundred eleven thousand, three hundred fifty-seven".