47313720 has 160 divisors (see below), whose sum is σ = 168577200. Its totient is φ = 11860992.

The previous prime is 47313671. The next prime is 47313731. The reversal of 47313720 is 2731374.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54651 + ... + 55509.

Almost surely, 2^47313720 is an apocalyptic number.

47313720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47313720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84288600).

47313720 is an abundant number, since it is smaller than the sum of its proper divisors (121263480).

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

47313720 is a wasteful number, since it uses less digits than its factorization.

47313720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 47313720 is about 6878.4969288355. The cubic root of 47313720 is about 361.6837790776.

The spelling of 47313720 in words is "forty-seven million, three hundred thirteen thousand, seven hundred twenty".