47913777 has 24 divisors (see below), whose sum is σ = 70790720. Its totient is φ = 31220640.

The previous prime is 47913757. The next prime is 47913787. The reversal of 47913777 is 77731974.

It is not a de Polignac number, because 47913777 - 2¹⁴ = 47897393 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47913757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108924 + ... + 109362.

Almost surely, 2^47913777 is an apocalyptic number.

It is an amenable number.

47913777 is a deficient number, since it is larger than the sum of its proper divisors (22876943).

47913777 is a wasteful number, since it uses less digits than its factorization.

47913777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 690 counting only the distinct ones).

The product of its digits is 259308, while the sum is 45.

The square root of 47913777 is about 6921.9778242927. The cubic root of 47913777 is about 363.2063803767.

The spelling of 47913777 in words is "forty-seven million, nine hundred thirteen thousand, seven hundred seventy-seven".