46457857 has 4 divisors (see below), whose sum is σ = 47094340. Its totient is φ = 45821376.

The previous prime is 46457849. The next prime is 46457893. The reversal of 46457857 is 75875464.

It is a happy number.

It is a Cunningham number, because it is equal to 6816²+1.

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 26378496 + 20079361 = 5136^2 + 4481^2 .

It is a cyclic number.

It is not a de Polignac number, because 46457857 - 2³ = 46457849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46457837) 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, 318132 + ... + 318277.

It is an arithmetic number, because the mean of its divisors is an integer number (11773585).

Almost surely, 2^46457857 is an apocalyptic number.

It is an amenable number.

46457857 is a deficient number, since it is larger than the sum of its proper divisors (636483).

46457857 is an equidigital number, since it uses as much as digits as its factorization.

46457857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636482.

The product of its digits is 940800, while the sum is 46.

The square root of 46457857 is about 6816.0000733568. Note that the first 4 decimals coincide. The cubic root of 46457857 is about 359.4896497917.

The spelling of 46457857 in words is "forty-six million, four hundred fifty-seven thousand, eight hundred fifty-seven".