672697 has 4 divisors (see below), whose sum is σ = 690916. Its totient is φ = 654480.

The previous prime is 672667. The next prime is 672703. The reversal of 672697 is 796276.

672697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 50176 = 789^2 + 224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 18181 = 672697 / (6 + 7 + 2 + 6 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672667) 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, 9054 + ... + 9127.

It is an arithmetic number, because the mean of its divisors is an integer number (172729).

2⁶⁷²⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

672697 is a deficient number, since it is larger than the sum of its proper divisors (18219).

672697 is a wasteful number, since it uses less digits than its factorization.

672697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18218.

The product of its digits is 31752, while the sum is 37.

The square root of 672697 is about 820.1810775676. The cubic root of 672697 is about 87.6206553185.

672697 divided by its sum of digits (37) gives a palindrome (18181).

It can be divided in two parts, 67269 and 7, that added together give a palindrome (67276).

The spelling of 672697 in words is "six hundred seventy-two thousand, six hundred ninety-seven".