670533023 has 4 divisors (see below), whose sum is σ = 709976160. Its totient is φ = 631089888.

The previous prime is 670532999. The next prime is 670533029. The reversal of 670533023 is 320335076.

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 670533023 - 2⁸ = 670532767 is a prime.

It is a super-2 number, since 2×670533023² = 899229069867037058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670533029) 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, 19721543 + ... + 19721576.

It is an arithmetic number, because the mean of its divisors is an integer number (177494040).

Almost surely, 2^670533023 is an apocalyptic number.

670533023 is a deficient number, since it is larger than the sum of its proper divisors (39443137).

670533023 is a wasteful number, since it uses less digits than its factorization.

670533023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39443136.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 670533023 is about 25894.6524016060. The cubic root of 670533023 is about 875.2659971703.

Adding to 670533023 its reverse (320335076), we get a palindrome (990868099).

The spelling of 670533023 in words is "six hundred seventy million, five hundred thirty-three thousand, twenty-three".