47980777 has 16 divisors (see below), whose sum is σ = 54164992. Its totient is φ = 42197760.

The previous prime is 47980753. The next prime is 47980787. The reversal of 47980777 is 77708974.

It is a cyclic number.

It is not a de Polignac number, because 47980777 - 2¹⁵ = 47948009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47980777.

It is not an unprimeable number, because it can be changed into a prime (47980717) 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, 26113 + ... + 27889.

It is an arithmetic number, because the mean of its divisors is an integer number (3385312).

Almost surely, 2^47980777 is an apocalyptic number.

It is an amenable number.

47980777 is a deficient number, since it is larger than the sum of its proper divisors (6184215).

47980777 is a wasteful number, since it uses less digits than its factorization.

47980777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888.

The product of its (nonzero) digits is 691488, while the sum is 49.

The square root of 47980777 is about 6926.8157908234. The cubic root of 47980777 is about 363.3755974926.

The spelling of 47980777 in words is "forty-seven million, nine hundred eighty thousand, seven hundred seventy-seven".