47347220 has 12 divisors (see below), whose sum is σ = 99429204. Its totient is φ = 18938880.

The previous prime is 47347219. The next prime is 47347241. The reversal of 47347220 is 2274374.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 38514436 = 2972^2 + 6206^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183661 + ... + 1183700.

It is an arithmetic number, because the mean of its divisors is an integer number (8285767).

Almost surely, 2^47347220 is an apocalyptic number.

It is an amenable number.

47347220 is an abundant number, since it is smaller than the sum of its proper divisors (52081984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47347220 is a wasteful number, since it uses less digits than its factorization.

47347220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367370 (or 2367368 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 47347220 is about 6880.9316229708. The cubic root of 47347220 is about 361.7691211171.

The spelling of 47347220 in words is "forty-seven million, three hundred forty-seven thousand, two hundred twenty".