672006505 has 8 divisors (see below), whose sum is σ = 814237632. Its totient is φ = 532385328.

The previous prime is 672006493. The next prime is 672006521. The reversal of 672006505 is 505600276.

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

It is a cyclic number.

It is not a de Polignac number, because 672006505 - 2²³ = 663617897 is a prime.

It is a Duffinian 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, 651919 + ... + 652948.

It is an arithmetic number, because the mean of its divisors is an integer number (101779704).

Almost surely, 2^672006505 is an apocalyptic number.

It is an amenable number.

672006505 is a deficient number, since it is larger than the sum of its proper divisors (142231127).

672006505 is a wasteful number, since it uses less digits than its factorization.

672006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304975.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 672006505 is about 25923.0882612392. The cubic root of 672006505 is about 875.9066542355.

The spelling of 672006505 in words is "six hundred seventy-two million, six thousand, five hundred five".