76564441 has 2 divisors, whose sum is σ = 76564442. Its totient is φ = 76564440.

The previous prime is 76564417. The next prime is 76564459. The reversal of 76564441 is 14446567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73891216 + 2673225 = 8596^2 + 1635^2 .

It is an emirp because it is prime and its reverse (14446567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76564441 - 2¹¹ = 76562393 is a prime.

It is a super-2 number, since 2×76564441² = 11724227251284962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76564441.

It is not a weakly prime, because it can be changed into another prime (76564541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38282220 + 38282221.

It is an arithmetic number, because the mean of its divisors is an integer number (38282221).

Almost surely, 2^76564441 is an apocalyptic number.

It is an amenable number.

76564441 is a deficient number, since it is larger than the sum of its proper divisors (1).

76564441 is an equidigital number, since it uses as much as digits as its factorization.

76564441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 76564441 is about 8750.1109135828. The cubic root of 76564441 is about 424.6284013698.

The spelling of 76564441 in words is "seventy-six million, five hundred sixty-four thousand, four hundred forty-one".