673503769 has 2 divisors, whose sum is σ = 673503770. Its totient is φ = 673503768.

The previous prime is 673503707. The next prime is 673503829. The reversal of 673503769 is 967305376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519247369 + 154256400 = 22787^2 + 12420^2 .

It is a cyclic number.

It is not a de Polignac number, because 673503769 - 2¹³ = 673495577 is a prime.

It is a super-2 number, since 2×673503769² = 907214653714410722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (673503869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336751884 + 336751885.

It is an arithmetic number, because the mean of its divisors is an integer number (336751885).

Almost surely, 2^673503769 is an apocalyptic number.

It is an amenable number.

673503769 is a deficient number, since it is larger than the sum of its proper divisors (1).

673503769 is an equidigital number, since it uses as much as digits as its factorization.

673503769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 46.

The square root of 673503769 is about 25951.9511597876. The cubic root of 673503769 is about 876.5566929345.

The spelling of 673503769 in words is "six hundred seventy-three million, five hundred three thousand, seven hundred sixty-nine".