47990443 has 8 divisors (see below), whose sum is σ = 51431328. Its totient is φ = 44662464.

The previous prime is 47990417. The next prime is 47990461. The reversal of 47990443 is 34409974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47990443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47990396 and 47990405.

It is not an unprimeable number, because it can be changed into a prime (47990543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27346 + ... + 29047.

It is an arithmetic number, because the mean of its divisors is an integer number (6428916).

Almost surely, 2^47990443 is an apocalyptic number.

47990443 is a deficient number, since it is larger than the sum of its proper divisors (3440885).

47990443 is a wasteful number, since it uses less digits than its factorization.

47990443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56453.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 47990443 is about 6927.5134788754. The cubic root of 47990443 is about 363.3999972134.

The spelling of 47990443 in words is "forty-seven million, nine hundred ninety thousand, four hundred forty-three".