673736994 has 32 divisors (see below), whose sum is σ = 1711079040. Its totient is φ = 192496176.

The previous prime is 673736977. The next prime is 673737011. The reversal of 673736994 is 499637376.

It is an interprime number because it is at equal distance from previous prime (673736977) and next prime (673737011).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 673736994.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890809 + ... + 891564.

It is an arithmetic number, because the mean of its divisors is an integer number (53471220).

Almost surely, 2^673736994 is an apocalyptic number.

673736994 is an abundant number, since it is smaller than the sum of its proper divisors (1037342046).

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

673736994 is a wasteful number, since it uses less digits than its factorization.

673736994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782391 (or 1782385 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 54.

The square root of 673736994 is about 25956.4441709569. Note that the first 3 decimals coincide. The cubic root of 673736994 is about 876.6578610600.

The spelling of 673736994 in words is "six hundred seventy-three million, seven hundred thirty-six thousand, nine hundred ninety-four".