457121723 has 4 divisors (see below), whose sum is σ = 457172520. Its totient is φ = 457070928.

The previous prime is 457121701. The next prime is 457121747. The reversal of 457121723 is 327121754.

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.

It is a cyclic number.

It is not a de Polignac number, because 457121723 - 2¹² = 457117627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457121723.

It is not an unprimeable number, because it can be changed into a prime (457121773) 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, 7865 + ... + 31242.

It is an arithmetic number, because the mean of its divisors is an integer number (114293130).

Almost surely, 2^457121723 is an apocalyptic number.

457121723 is a deficient number, since it is larger than the sum of its proper divisors (50797).

457121723 is a wasteful number, since it uses less digits than its factorization.

457121723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50796.

The product of its digits is 11760, while the sum is 32.

The square root of 457121723 is about 21380.4051177708. The cubic root of 457121723 is about 770.3308428168.

The spelling of 457121723 in words is "four hundred fifty-seven million, one hundred twenty-one thousand, seven hundred twenty-three".