47229889 has 4 divisors (see below), whose sum is σ = 53977024. Its totient is φ = 40482756.

The previous prime is 47229883. The next prime is 47229901. The reversal of 47229889 is 98892274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47229889 - 2³ = 47229881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47229881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3373557 + ... + 3373570.

It is an arithmetic number, because the mean of its divisors is an integer number (13494256).

Almost surely, 2^47229889 is an apocalyptic number.

It is an amenable number.

47229889 is a deficient number, since it is larger than the sum of its proper divisors (6747135).

47229889 is an equidigital number, since it uses as much as digits as its factorization.

47229889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747134.

The product of its digits is 580608, while the sum is 49.

The square root of 47229889 is about 6872.4005267446. The cubic root of 47229889 is about 361.4700409496.

The spelling of 47229889 in words is "forty-seven million, two hundred twenty-nine thousand, eight hundred eighty-nine".