672207071 has 4 divisors (see below), whose sum is σ = 672791232. Its totient is φ = 671622912.

The previous prime is 672207049. The next prime is 672207073. The reversal of 672207071 is 170702276.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672207071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672207073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290351 + ... + 292656.

It is an arithmetic number, because the mean of its divisors is an integer number (168197808).

Almost surely, 2^672207071 is an apocalyptic number.

672207071 is a deficient number, since it is larger than the sum of its proper divisors (584161).

672207071 is a wasteful number, since it uses less digits than its factorization.

672207071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584160.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 672207071 is about 25926.9564546246. The cubic root of 672207071 is about 875.9937861398.

The spelling of 672207071 in words is "six hundred seventy-two million, two hundred seven thousand, seventy-one".