47957910 has 128 divisors (see below), whose sum is σ = 154635264. Its totient is φ = 9192960.

The previous prime is 47957887. The next prime is 47957911. The reversal of 47957910 is 1975974.

It is a happy number.

It is a super-2 number, since 2×47957910² = 4599922263136200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47957911) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29232 + ... + 30828.

It is an arithmetic number, because the mean of its divisors is an integer number (1208088).

Almost surely, 2^47957910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47957910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77317632).

47957910 is an abundant number, since it is smaller than the sum of its proper divisors (106677354).

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

47957910 is a wasteful number, since it uses less digits than its factorization.

47957910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 47957910 is about 6925.1649799842. The cubic root of 47957910 is about 363.3178616610.

The spelling of 47957910 in words is "forty-seven million, nine hundred fifty-seven thousand, nine hundred ten".