672071 has 4 divisors (see below), whose sum is σ = 674544. Its totient is φ = 669600.

The previous prime is 672059. The next prime is 672073. The reversal of 672071 is 170276.

It is a happy number.

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 672071 - 2¹⁴ = 655687 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 (672073) 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, 770 + ... + 1391.

It is an arithmetic number, because the mean of its divisors is an integer number (168636).

2⁶⁷²⁰⁷¹ is an apocalyptic number.

672071 is a deficient number, since it is larger than the sum of its proper divisors (2473).

672071 is a wasteful number, since it uses less digits than its factorization.

672071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 672071 is about 819.7993656987. The cubic root of 672071 is about 87.5934674695.

The spelling of 672071 in words is "six hundred seventy-two thousand, seventy-one".