673569297 has 16 divisors (see below), whose sum is σ = 998296000. Its totient is φ = 448859232.

The previous prime is 673569241. The next prime is 673569313. The reversal of 673569297 is 792965376.

673569297 is a `hidden beast` number, since 6 + 73 + 569 + 2 + 9 + 7 = 666.

It is not a de Polignac number, because 673569297 - 2⁶ = 673569233 is a prime.

It is a super-2 number, since 2×673569297² = 907391195722148418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673569227) 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, 98454 + ... + 105072.

It is an arithmetic number, because the mean of its divisors is an integer number (62393500).

Almost surely, 2^673569297 is an apocalyptic number.

It is an amenable number.

673569297 is a deficient number, since it is larger than the sum of its proper divisors (324726703).

673569297 is a wasteful number, since it uses less digits than its factorization.

673569297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397 (or 10391 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 673569297 is about 25953.2136160438. The cubic root of 673569297 is about 876.5851199688.

The spelling of 673569297 in words is "six hundred seventy-three million, five hundred sixty-nine thousand, two hundred ninety-seven".