672218504 has 32 divisors (see below), whose sum is σ = 1303413120. Its totient is φ = 324831936.

The previous prime is 672218501. The next prime is 672218507. The reversal of 672218504 is 405812276.

It is an interprime number because it is at equal distance from previous prime (672218501) and next prime (672218507).

It is not an unprimeable number, because it can be changed into a prime (672218501) 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 7 ways as a sum of consecutive naturals, for example, 16577 + ... + 40239.

It is an arithmetic number, because the mean of its divisors is an integer number (40731660).

Almost surely, 2^672218504 is an apocalyptic number.

It is an amenable number.

672218504 is a deficient number, since it is larger than the sum of its proper divisors (631194616).

672218504 is a wasteful number, since it uses less digits than its factorization.

672218504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23789 (or 23785 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 672218504 is about 25927.1769384945. The cubic root of 672218504 is about 875.9987524568.

The spelling of 672218504 in words is "six hundred seventy-two million, two hundred eighteen thousand, five hundred four".