47051790 has 128 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 10948608.

The previous prime is 47051783. The next prime is 47051843. The reversal of 47051790 is 9715074.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 485022 + ... + 485118.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^47051790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47051790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64350720).

47051790 is an abundant number, since it is smaller than the sum of its proper divisors (81649650).

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

47051790 is a wasteful number, since it uses less digits than its factorization.

47051790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 47051790 is about 6859.4307343977. The cubic root of 47051790 is about 361.0151133295.

The spelling of 47051790 in words is "forty-seven million, fifty-one thousand, seven hundred ninety".