47998764 has 72 divisors (see below), whose sum is σ = 136819760. Its totient is φ = 14541120.

The previous prime is 47998751. The next prime is 47998787. The reversal of 47998764 is 46789974.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 47998764.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11232 + ... + 14904.

Almost surely, 2^47998764 is an apocalyptic number.

47998764 is a gapful number since it is divisible by the number (44) 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 47998764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68409880).

47998764 is an abundant number, since it is smaller than the sum of its proper divisors (88820996).

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

47998764 is a wasteful number, since it uses less digits than its factorization.

47998764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3689 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 47998764 is about 6928.1140290847. The cubic root of 47998764 is about 363.4209991493.

The spelling of 47998764 in words is "forty-seven million, nine hundred ninety-eight thousand, seven hundred sixty-four".