457857007 has 4 divisors (see below), whose sum is σ = 462057640. Its totient is φ = 453656376.

The previous prime is 457856989. The next prime is 457857019. The reversal of 457857007 is 700758754.

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

It is a cyclic number.

It is not a de Polignac number, because 457857007 - 2⁷ = 457856879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457857047) 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, 2100153 + ... + 2100370.

It is an arithmetic number, because the mean of its divisors is an integer number (115514410).

Almost surely, 2^457857007 is an apocalyptic number.

457857007 is a deficient number, since it is larger than the sum of its proper divisors (4200633).

457857007 is a wasteful number, since it uses less digits than its factorization.

457857007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200632.

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 457857007 is about 21397.5934861844. The cubic root of 457857007 is about 770.7436493650.

The spelling of 457857007 in words is "four hundred fifty-seven million, eight hundred fifty-seven thousand, seven".