673976281 has 16 divisors (see below), whose sum is σ = 753654528. Its totient is φ = 597416400.

The previous prime is 673976279. The next prime is 673976297. The reversal of 673976281 is 182679376.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 673976281 - 2¹ = 673976279 is a prime.

It is a super-2 number, since 2×673976281² = 908488054701181922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673976221) 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, 428226 + ... + 429796.

It is an arithmetic number, because the mean of its divisors is an integer number (47103408).

Almost surely, 2^673976281 is an apocalyptic number.

It is an amenable number.

673976281 is a deficient number, since it is larger than the sum of its proper divisors (79678247).

673976281 is a wasteful number, since it uses less digits than its factorization.

673976281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its digits is 762048, while the sum is 49.

The square root of 673976281 is about 25961.0531566036. The cubic root of 673976281 is about 876.7616344918.

The spelling of 673976281 in words is "six hundred seventy-three million, nine hundred seventy-six thousand, two hundred eighty-one".