673573506 has 16 divisors (see below), whose sum is σ = 1350367200. Its totient is φ = 223987808.

The previous prime is 673573499. The next prime is 673573553. The reversal of 673573506 is 605375376.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131451 + ... + 136478.

It is an arithmetic number, because the mean of its divisors is an integer number (84397950).

Almost surely, 2^673573506 is an apocalyptic number.

673573506 is an abundant number, since it is smaller than the sum of its proper divisors (676793694).

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

673573506 is a wasteful number, since it uses less digits than its factorization.

673573506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268353.

The product of its (nonzero) digits is 396900, while the sum is 42.

The square root of 673573506 is about 25953.2947041411. The cubic root of 673573506 is about 876.5869458334.

The spelling of 673573506 in words is "six hundred seventy-three million, five hundred seventy-three thousand, five hundred six".