673869677 has 16 divisors (see below), whose sum is σ = 736111152. Its totient is φ = 613171200.

The previous prime is 673869671. The next prime is 673869689. The reversal of 673869677 is 776968376.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8797156 + 665072521 = 2966^2 + 25789^2 .

It is a cyclic number.

It is not a de Polignac number, because 673869677 - 2⁸ = 673869421 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 (673869671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336443 + ... + 338439.

It is an arithmetic number, because the mean of its divisors is an integer number (46006947).

Almost surely, 2^673869677 is an apocalyptic number.

It is an amenable number.

673869677 is a deficient number, since it is larger than the sum of its proper divisors (62241475).

673869677 is a wasteful number, since it uses less digits than its factorization.

673869677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its digits is 16003008, while the sum is 59.

The square root of 673869677 is about 25958.9999229554. Note that the first 4 decimals coincide. The cubic root of 673869677 is about 876.7154057504.

The spelling of 673869677 in words is "six hundred seventy-three million, eight hundred sixty-nine thousand, six hundred seventy-seven".