673071256 has 64 divisors (see below), whose sum is σ = 1530547200. Its totient is φ = 273283200.

The previous prime is 673071253. The next prime is 673071271. The reversal of 673071256 is 652170376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673071251) 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, 25975 + ... + 44953.

It is an arithmetic number, because the mean of its divisors is an integer number (23914800).

Almost surely, 2^673071256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673071256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765273600).

673071256 is an abundant number, since it is smaller than the sum of its proper divisors (857475944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673071256 is a wasteful number, since it uses less digits than its factorization.

673071256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19040 (or 19036 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 673071256 is about 25943.6168642693. The cubic root of 673071256 is about 876.3690160094.

The spelling of 673071256 in words is "six hundred seventy-three million, seventy-one thousand, two hundred fifty-six".