673961745 has 8 divisors (see below), whose sum is σ = 1078338816. Its totient is φ = 359446256.

The previous prime is 673961741. The next prime is 673961759. The reversal of 673961745 is 547169376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673961745 - 2² = 673961741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 673961694 and 673961703.

It is not an unprimeable number, because it can be changed into a prime (673961741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22465377 + ... + 22465406.

It is an arithmetic number, because the mean of its divisors is an integer number (134792352).

Almost surely, 2^673961745 is an apocalyptic number.

It is an amenable number.

673961745 is a deficient number, since it is larger than the sum of its proper divisors (404377071).

673961745 is a wasteful number, since it uses less digits than its factorization.

673961745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44930791.

The product of its digits is 952560, while the sum is 48.

The square root of 673961745 is about 25960.7731972682. The cubic root of 673961745 is about 876.7553312538.

The spelling of 673961745 in words is "six hundred seventy-three million, nine hundred sixty-one thousand, seven hundred forty-five".