457208747 has 4 divisors (see below), whose sum is σ = 457251720. Its totient is φ = 457165776.

The previous prime is 457208699. The next prime is 457208771. The reversal of 457208747 is 747802754.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 747802754 = 2 ⋅373901377.

It is a cyclic number.

It is not a de Polignac number, because 457208747 - 2⁶ = 457208683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 457208698 and 457208707.

It is not an unprimeable number, because it can be changed into a prime (457208447) 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, 7583 + ... + 31175.

It is an arithmetic number, because the mean of its divisors is an integer number (114312930).

Almost surely, 2^457208747 is an apocalyptic number.

457208747 is a deficient number, since it is larger than the sum of its proper divisors (42973).

457208747 is a wasteful number, since it uses less digits than its factorization.

457208747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42972.

The product of its (nonzero) digits is 439040, while the sum is 44.

The square root of 457208747 is about 21382.4401554172. The cubic root of 457208747 is about 770.3797233186.

The spelling of 457208747 in words is "four hundred fifty-seven million, two hundred eight thousand, seven hundred forty-seven".