974453789 has 2 divisors, whose sum is σ = 974453790. Its totient is φ = 974453788.

The previous prime is 974453759. The next prime is 974453803. The reversal of 974453789 is 987354479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940464889 + 33988900 = 30667^2 + 5830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974453789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974453749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487226894 + 487226895.

It is an arithmetic number, because the mean of its divisors is an integer number (487226895).

Almost surely, 2^974453789 is an apocalyptic number.

It is an amenable number.

974453789 is a deficient number, since it is larger than the sum of its proper divisors (1).

974453789 is an equidigital number, since it uses as much as digits as its factorization.

974453789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 974453789 is about 31216.2423907811. The cubic root of 974453789 is about 991.4110372557.

The spelling of 974453789 in words is "nine hundred seventy-four million, four hundred fifty-three thousand, seven hundred eighty-nine".