672212563 has 4 divisors (see below), whose sum is σ = 733322808. Its totient is φ = 611102320.

The previous prime is 672212551. The next prime is 672212573. The reversal of 672212563 is 365212276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672212563 - 2¹⁷ = 672081491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672212573) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30555106 + ... + 30555127.

It is an arithmetic number, because the mean of its divisors is an integer number (183330702).

Almost surely, 2^672212563 is an apocalyptic number.

672212563 is a deficient number, since it is larger than the sum of its proper divisors (61110245).

672212563 is a wasteful number, since it uses less digits than its factorization.

672212563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61110244.

The product of its digits is 30240, while the sum is 34.

The square root of 672212563 is about 25927.0623673412. The cubic root of 672212563 is about 875.9961717861.

The spelling of 672212563 in words is "six hundred seventy-two million, two hundred twelve thousand, five hundred sixty-three".