673156890 has 96 divisors (see below), whose sum is σ = 2105550720. Its totient is φ = 145763712.

The previous prime is 673156877. The next prime is 673156907. The reversal of 673156890 is 98651376.

It is a happy number.

673156890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon 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, 16149 + ... + 40088.

It is an arithmetic number, because the mean of its divisors is an integer number (21932820).

Almost surely, 2^673156890 is an apocalyptic number.

673156890 is an abundant number, since it is smaller than the sum of its proper divisors (1432393830).

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

673156890 is a wasteful number, since it uses less digits than its factorization.

673156890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56276 (or 56273 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 673156890 is about 25945.2671984699. The cubic root of 673156890 is about 876.4061808718.

The spelling of 673156890 in words is "six hundred seventy-three million, one hundred fifty-six thousand, eight hundred ninety".