46143891 has 8 divisors (see below), whose sum is σ = 68361360. Its totient is φ = 30762576.

The previous prime is 46143887. The next prime is 46143893. The reversal of 46143891 is 19834164.

46143891 is a `hidden beast` number, since 4 + 614 + 38 + 9 + 1 = 666.

It is not a de Polignac number, because 46143891 - 2² = 46143887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46143893) 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, 854490 + ... + 854543.

It is an arithmetic number, because the mean of its divisors is an integer number (8545170).

Almost surely, 2^46143891 is an apocalyptic number.

46143891 is a deficient number, since it is larger than the sum of its proper divisors (22217469).

46143891 is a wasteful number, since it uses less digits than its factorization.

46143891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709042 (or 1709036 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 46143891 is about 6792.9294858698. The cubic root of 46143891 is about 358.6779984758.

The spelling of 46143891 in words is "forty-six million, one hundred forty-three thousand, eight hundred ninety-one".