47211899 has 4 divisors (see below), whose sum is σ = 53956464. Its totient is φ = 40467336.

The previous prime is 47211863. The next prime is 47211911. The reversal of 47211899 is 99811274.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47211899 - 2⁸ = 47211643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47211799) 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, 3372272 + ... + 3372285.

It is an arithmetic number, because the mean of its divisors is an integer number (13489116).

Almost surely, 2^47211899 is an apocalyptic number.

47211899 is a deficient number, since it is larger than the sum of its proper divisors (6744565).

47211899 is an equidigital number, since it uses as much as digits as its factorization.

47211899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744564.

The product of its digits is 36288, while the sum is 41.

The square root of 47211899 is about 6871.0915435613. The cubic root of 47211899 is about 361.4241401298.

The spelling of 47211899 in words is "forty-seven million, two hundred eleven thousand, eight hundred ninety-nine".