673523091 has 12 divisors (see below), whose sum is σ = 973245000. Its totient is φ = 448840800.

The previous prime is 673523087. The next prime is 673523117. The reversal of 673523091 is 190325376.

It is not a de Polignac number, because 673523091 - 2² = 673523087 is a prime.

It is a super-2 number, since 2×673523091² = 907266708220388562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673523041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12535 + ... + 38783.

It is an arithmetic number, because the mean of its divisors is an integer number (81103750).

Almost surely, 2^673523091 is an apocalyptic number.

673523091 is a deficient number, since it is larger than the sum of its proper divisors (299721909).

673523091 is a wasteful number, since it uses less digits than its factorization.

673523091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29106 (or 29103 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 673523091 is about 25952.3234219983. The cubic root of 673523091 is about 876.5650753010.

The spelling of 673523091 in words is "six hundred seventy-three million, five hundred twenty-three thousand, ninety-one".