456047789 has 4 divisors (see below), whose sum is σ = 470759040. Its totient is φ = 441336540.

The previous prime is 456047771. The next prime is 456047821. The reversal of 456047789 is 987740654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987740654 = 2 ⋅493870327.

It is a cyclic number.

It is not a de Polignac number, because 456047789 - 2¹⁶ = 455982253 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 (456047719) 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, 7355579 + ... + 7355640.

It is an arithmetic number, because the mean of its divisors is an integer number (117689760).

Almost surely, 2^456047789 is an apocalyptic number.

It is an amenable number.

456047789 is a deficient number, since it is larger than the sum of its proper divisors (14711251).

456047789 is a wasteful number, since it uses less digits than its factorization.

456047789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14711250.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 456047789 is about 21355.2754372310. The cubic root of 456047789 is about 769.7271136232.

The spelling of 456047789 in words is "four hundred fifty-six million, forty-seven thousand, seven hundred eighty-nine".