47644674 has 64 divisors (see below), whose sum is σ = 119549952. Its totient is φ = 12297600.

The previous prime is 47644673. The next prime is 47644679.

47644674 is nontrivially palindromic in base 10.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47644673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129639 + ... + 130005.

It is an arithmetic number, because the mean of its divisors is an integer number (1867968).

Almost surely, 2^47644674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47644674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59774976).

47644674 is an abundant number, since it is smaller than the sum of its proper divisors (71905278).

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

47644674 is a wasteful number, since it uses less digits than its factorization.

47644674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its digits is 451584, while the sum is 42.

The square root of 47644674 is about 6902.5121513837. The cubic root of 47644674 is about 362.5251324628.

It can be divided in two parts, 476 and 44674, that added together give a triangular number (45150 = T₃₀₀).

The spelling of 47644674 in words is "forty-seven million, six hundred forty-four thousand, six hundred seventy-four".