679073445 has 48 divisors (see below), whose sum is σ = 1224916992. Its totient is φ = 347639040.

The previous prime is 679073419. The next prime is 679073453. The reversal of 679073445 is 544370976.

It is not a de Polignac number, because 679073445 - 2¹⁷ = 678942373 is a prime.

It is a super-2 number, since 2×679073445² = 922281487408336050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 679073445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175249 + ... + 179081.

It is an arithmetic number, because the mean of its divisors is an integer number (25519104).

Almost surely, 2^679073445 is an apocalyptic number.

It is an amenable number.

679073445 is a deficient number, since it is larger than the sum of its proper divisors (545843547).

679073445 is a wasteful number, since it uses less digits than its factorization.

679073445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002 (or 3999 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 679073445 is about 26059.0376836905. The cubic root of 679073445 is about 878.9663504845.

The spelling of 679073445 in words is "six hundred seventy-nine million, seventy-three thousand, four hundred forty-five".