673770345 has 16 divisors (see below), whose sum is σ = 1091022912. Its totient is φ = 355014080.

The previous prime is 673770329. The next prime is 673770347. The reversal of 673770345 is 543077376.

It is not a de Polignac number, because 673770345 - 2⁴ = 673770329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 673770297 and 673770306.

It is not an unprimeable number, because it can be changed into a prime (673770347) 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, 269346 + ... + 271835.

It is an arithmetic number, because the mean of its divisors is an integer number (68188932).

Almost surely, 2^673770345 is an apocalyptic number.

It is an amenable number.

673770345 is a deficient number, since it is larger than the sum of its proper divisors (417252567).

673770345 is a wasteful number, since it uses less digits than its factorization.

673770345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541272.

The product of its (nonzero) digits is 370440, while the sum is 42.

The square root of 673770345 is about 25957.0866046249. The cubic root of 673770345 is about 876.6723261179.

The spelling of 673770345 in words is "six hundred seventy-three million, seven hundred seventy thousand, three hundred forty-five".