670763231 has 4 divisors (see below), whose sum is σ = 671215200. Its totient is φ = 670311264.

The previous prime is 670763227. The next prime is 670763263. The reversal of 670763231 is 132367076.

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 670763231 - 2² = 670763227 is a prime.

It is a super-2 number, since 2×670763231² = 899846624123118722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670763191 and 670763200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670763221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223751 + ... + 226728.

It is an arithmetic number, because the mean of its divisors is an integer number (167803800).

Almost surely, 2^670763231 is an apocalyptic number.

670763231 is a deficient number, since it is larger than the sum of its proper divisors (451969).

670763231 is a wasteful number, since it uses less digits than its factorization.

670763231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451968.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 670763231 is about 25899.0971078144. The cubic root of 670763231 is about 875.3661514124.

It can be divided in two parts, 67076 and 3231, that added together give a palindrome (70307).

The spelling of 670763231 in words is "six hundred seventy million, seven hundred sixty-three thousand, two hundred thirty-one".