764623 has 2 divisors, whose sum is σ = 764624. Its totient is φ = 764622.

The previous prime is 764611. The next prime is 764627. The reversal of 764623 is 326467.

It is a strong prime.

It is an emirp because it is prime and its reverse (326467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 764623 - 2⁵ = 764591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764591 and 764600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382311 + 382312.

It is an arithmetic number, because the mean of its divisors is an integer number (382312).

2⁷⁶⁴⁶²³ is an apocalyptic number.

764623 is a deficient number, since it is larger than the sum of its proper divisors (1).

764623 is an equidigital number, since it uses as much as digits as its factorization.

764623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 28.

The square root of 764623 is about 874.4272411127. The cubic root of 764623 is about 91.4427164917.

The spelling of 764623 in words is "seven hundred sixty-four thousand, six hundred twenty-three".