76664453 has 2 divisors, whose sum is σ = 76664454. Its totient is φ = 76664452.

The previous prime is 76664437. The next prime is 76664461. The reversal of 76664453 is 35446667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59706529 + 16957924 = 7727^2 + 4118^2 .

It is an emirp because it is prime and its reverse (35446667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76664453 - 2⁴ = 76664437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76664453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76666453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38332226 + 38332227.

It is an arithmetic number, because the mean of its divisors is an integer number (38332227).

Almost surely, 2^76664453 is an apocalyptic number.

It is an amenable number.

76664453 is a deficient number, since it is larger than the sum of its proper divisors (1).

76664453 is an equidigital number, since it uses as much as digits as its factorization.

76664453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 41.

The square root of 76664453 is about 8755.8239475220. The cubic root of 76664453 is about 424.8132106509.

The spelling of 76664453 in words is "seventy-six million, six hundred sixty-four thousand, four hundred fifty-three".