46128857 has 4 divisors (see below), whose sum is σ = 46153380. Its totient is φ = 46104336.

The previous prime is 46128853. The next prime is 46128917. The reversal of 46128857 is 75882164.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29637136 + 16491721 = 5444^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 46128857 - 2² = 46128853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46128851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9182 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (11538345).

Almost surely, 2^46128857 is an apocalyptic number.

It is an amenable number.

46128857 is a deficient number, since it is larger than the sum of its proper divisors (24523).

46128857 is a wasteful number, since it uses less digits than its factorization.

46128857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24522.

The product of its digits is 107520, while the sum is 41.

The square root of 46128857 is about 6791.8228039312. The cubic root of 46128857 is about 358.6390409840.

The spelling of 46128857 in words is "forty-six million, one hundred twenty-eight thousand, eight hundred fifty-seven".