47780859 has 32 divisors (see below), whose sum is σ = 74833920. Its totient is φ = 26556192.

The previous prime is 47780819. The next prime is 47780881. The reversal of 47780859 is 95808774.

It is not a de Polignac number, because 47780859 - 2⁷ = 47780731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47780819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137524 + ... + 137870.

It is an arithmetic number, because the mean of its divisors is an integer number (2338560).

Almost surely, 2^47780859 is an apocalyptic number.

47780859 is a deficient number, since it is larger than the sum of its proper divisors (27053061).

47780859 is a wasteful number, since it uses less digits than its factorization.

47780859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 47780859 is about 6912.3699987776. The cubic root of 47780859 is about 362.8702114000.

The spelling of 47780859 in words is "forty-seven million, seven hundred eighty thousand, eight hundred fifty-nine".