76857223 has 4 divisors (see below), whose sum is σ = 80902360. Its totient is φ = 72812088.

The previous prime is 76857217. The next prime is 76857239. The reversal of 76857223 is 32275867.

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-76857223 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 (76854223) 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, 2022540 + ... + 2022577.

It is an arithmetic number, because the mean of its divisors is an integer number (20225590).

Almost surely, 2^76857223 is an apocalyptic number.

76857223 is a deficient number, since it is larger than the sum of its proper divisors (4045137).

76857223 is a wasteful number, since it uses less digits than its factorization.

76857223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045136.

The product of its digits is 141120, while the sum is 40.

The square root of 76857223 is about 8766.8251379847. The cubic root of 76857223 is about 425.1689717962.

The spelling of 76857223 in words is "seventy-six million, eight hundred fifty-seven thousand, two hundred twenty-three".