672194506 has 8 divisors (see below), whose sum is σ = 1008999684. Its totient is φ = 335861280.

The previous prime is 672194461. The next prime is 672194519. The reversal of 672194506 is 605491276.

It can be written as a sum of positive squares in 2 ways, for example, as 647244481 + 24950025 = 25441^2 + 4995^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114405 + ... + 120136.

Almost surely, 2^672194506 is an apocalyptic number.

672194506 is a deficient number, since it is larger than the sum of its proper divisors (336805178).

672194506 is a wasteful number, since it uses less digits than its factorization.

672194506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235976.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 672194506 is about 25926.7141381240. The cubic root of 672194506 is about 875.9883280347.

The spelling of 672194506 in words is "six hundred seventy-two million, one hundred ninety-four thousand, five hundred six".