47213800 has 24 divisors (see below), whose sum is σ = 109772550. Its totient is φ = 18885440.

The previous prime is 47213791. The next prime is 47213801. The reversal of 47213800 is 831274.

It can be written as a sum of positive squares in 3 ways, for example, as 17859076 + 29354724 = 4226^2 + 5418^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (47213801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117835 + ... + 118234.

Almost surely, 2^47213800 is an apocalyptic number.

47213800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47213800 is an abundant number, since it is smaller than the sum of its proper divisors (62558750).

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

47213800 is a wasteful number, since it uses less digits than its factorization.

47213800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236085 (or 236076 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 47213800 is about 6871.2298753571. The cubic root of 47213800 is about 361.4289910119.

The spelling of 47213800 in words is "forty-seven million, two hundred thirteen thousand, eight hundred".