457665747 has 16 divisors (see below), whose sum is σ = 760795392. Its totient is φ = 237748320.

The previous prime is 457665731. The next prime is 457665763. The reversal of 457665747 is 747566754.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (457665731) and next prime (457665763).

It is not a de Polignac number, because 457665747 - 2⁴ = 457665731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457665747.

It is not an unprimeable number, because it can be changed into a prime (457665797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990388 + ... + 990849.

It is an arithmetic number, because the mean of its divisors is an integer number (47549712).

Almost surely, 2^457665747 is an apocalyptic number.

457665747 is a deficient number, since it is larger than the sum of its proper divisors (303129645).

457665747 is a wasteful number, since it uses less digits than its factorization.

457665747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981258.

The product of its digits is 4939200, while the sum is 51.

The square root of 457665747 is about 21393.1238251921. The cubic root of 457665747 is about 770.6363138439.

The spelling of 457665747 in words is "four hundred fifty-seven million, six hundred sixty-five thousand, seven hundred forty-seven".