47231899 has 16 divisors (see below), whose sum is σ = 58756320. Its totient is φ = 37301760.

The previous prime is 47231887. The next prime is 47231909. The reversal of 47231899 is 99813274.

It is a cyclic number.

It is not a de Polignac number, because 47231899 - 2⁵ = 47231867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47231819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7284 + ... + 12145.

It is an arithmetic number, because the mean of its divisors is an integer number (3672270).

Almost surely, 2^47231899 is an apocalyptic number.

47231899 is a deficient number, since it is larger than the sum of its proper divisors (11524421).

47231899 is a wasteful number, since it uses less digits than its factorization.

47231899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470.

The product of its digits is 108864, while the sum is 43.

The square root of 47231899 is about 6872.5467623000. The cubic root of 47231899 is about 361.4751686663.

It can be divided in two parts, 472 and 31899, that multiplied together give a triangular number (15056328 = T₅₄₈₇).

The spelling of 47231899 in words is "forty-seven million, two hundred thirty-one thousand, eight hundred ninety-nine".