672076221 has 16 divisors (see below), whose sum is σ = 903902400. Its totient is φ = 444165120.

The previous prime is 672076219. The next prime is 672076231. The reversal of 672076221 is 122670276.

It is not a de Polignac number, because 672076221 - 2¹ = 672076219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672076211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218031 + ... + 221091.

It is an arithmetic number, because the mean of its divisors is an integer number (56493900).

Almost surely, 2^672076221 is an apocalyptic number.

It is an amenable number.

672076221 is a deficient number, since it is larger than the sum of its proper divisors (231826179).

672076221 is a wasteful number, since it uses less digits than its factorization.

672076221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 672076221 is about 25924.4328964010. The cubic root of 672076221 is about 875.9369429288.

The spelling of 672076221 in words is "six hundred seventy-two million, seventy-six thousand, two hundred twenty-one".