673504245 has 12 divisors (see below), whose sum is σ = 1167407436. Its totient is φ = 359202240.

The previous prime is 673504213. The next prime is 673504261. The reversal of 673504245 is 542405376.

673504245 is a `hidden beast` number, since 67 + 350 + 4 + 245 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70408881 + 603095364 = 8391^2 + 24558^2 .

It is not a de Polignac number, because 673504245 - 2⁵ = 673504213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7483336 + ... + 7483425.

It is an arithmetic number, because the mean of its divisors is an integer number (97283953).

Almost surely, 2^673504245 is an apocalyptic number.

It is an amenable number.

673504245 is a deficient number, since it is larger than the sum of its proper divisors (493903191).

673504245 is a wasteful number, since it uses less digits than its factorization.

673504245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14966772 (or 14966769 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 673504245 is about 25951.9603305800. The cubic root of 673504245 is about 876.5568994371.

The spelling of 673504245 in words is "six hundred seventy-three million, five hundred four thousand, two hundred forty-five".