623264773 has 4 divisors (see below), whose sum is σ = 623344140. Its totient is φ = 623185408.

The previous prime is 623264749. The next prime is 623264783. The reversal of 623264773 is 377462326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377462326 = 2 ⋅188731163.

It can be written as a sum of positive squares in 2 ways, for example, as 539029089 + 84235684 = 23217^2 + 9178^2 .

It is a cyclic number.

It is not a de Polignac number, because 623264773 - 2²¹ = 621167621 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 (623264783) 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, 26428 + ... + 44101.

It is an arithmetic number, because the mean of its divisors is an integer number (155836035).

Almost surely, 2^623264773 is an apocalyptic number.

It is an amenable number.

623264773 is a deficient number, since it is larger than the sum of its proper divisors (79367).

623264773 is an equidigital number, since it uses as much as digits as its factorization.

623264773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79366.

The product of its digits is 254016, while the sum is 40.

The square root of 623264773 is about 24965.2713384013. The cubic root of 623264773 is about 854.1959875569.

The spelling of 623264773 in words is "six hundred twenty-three million, two hundred sixty-four thousand, seven hundred seventy-three".