672166079 has 8 divisors (see below), whose sum is σ = 724166352. Its totient is φ = 620208000.

The previous prime is 672166037. The next prime is 672166091. The reversal of 672166079 is 970661276.

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 672166079 - 2¹² = 672161983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672162079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27704 + ... + 45954.

It is an arithmetic number, because the mean of its divisors is an integer number (90520794).

Almost surely, 2^672166079 is an apocalyptic number.

672166079 is a deficient number, since it is larger than the sum of its proper divisors (52000273).

672166079 is a wasteful number, since it uses less digits than its factorization.

672166079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21097.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 672166079 is about 25926.1659139951. The cubic root of 672166079 is about 875.9759793911.

The spelling of 672166079 in words is "six hundred seventy-two million, one hundred sixty-six thousand, seventy-nine".