76641223 has 2 divisors, whose sum is σ = 76641224. Its totient is φ = 76641222.

The previous prime is 76641217. The next prime is 76641241. The reversal of 76641223 is 32214667.

It is a weak prime.

It is an emirp because it is prime and its reverse (32214667) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76641223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76641203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38320611 + 38320612.

It is an arithmetic number, because the mean of its divisors is an integer number (38320612).

Almost surely, 2^76641223 is an apocalyptic number.

76641223 is a deficient number, since it is larger than the sum of its proper divisors (1).

76641223 is an equidigital number, since it uses as much as digits as its factorization.

76641223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 76641223 is about 8754.4973013874. The cubic root of 76641223 is about 424.7702989432.

The spelling of 76641223 in words is "seventy-six million, six hundred forty-one thousand, two hundred twenty-three".