673638134 has 16 divisors (see below), whose sum is σ = 1089516960. Its totient is φ = 310529280.

The previous prime is 673638113. The next prime is 673638181. The reversal of 673638134 is 431836376.

It is a junction number, because it is equal to n+sod(n) for n = 673638091 and 673638100.

It is a congruent number.

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, 6374 + ... + 37254.

It is an arithmetic number, because the mean of its divisors is an integer number (68094810).

Almost surely, 2^673638134 is an apocalyptic number.

673638134 is a deficient number, since it is larger than the sum of its proper divisors (415878826).

673638134 is a wasteful number, since it uses less digits than its factorization.

673638134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31735.

The product of its digits is 217728, while the sum is 41.

The square root of 673638134 is about 25954.5397570444. The cubic root of 673638134 is about 876.6149805116.

The spelling of 673638134 in words is "six hundred seventy-three million, six hundred thirty-eight thousand, one hundred thirty-four".