673402986 has 12 divisors (see below), whose sum is σ = 1459039842. Its totient is φ = 224467656.

The previous prime is 673402949. The next prime is 673403009. The reversal of 673402986 is 689204376.

It can be written as a sum of positive squares in only one way, i.e., 601475625 + 71927361 = 24525^2 + 8481^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18705621 + ... + 18705656.

Almost surely, 2^673402986 is an apocalyptic number.

673402986 is an abundant number, since it is smaller than the sum of its proper divisors (785636856).

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

673402986 is a wasteful number, since it uses less digits than its factorization.

673402986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37411285 (or 37411282 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 673402986 is about 25950.0093641602. The cubic root of 673402986 is about 876.5129681507.

The spelling of 673402986 in words is "six hundred seventy-three million, four hundred two thousand, nine hundred eighty-six".