77297063 has 2 divisors, whose sum is σ = 77297064. Its totient is φ = 77297062.

The previous prime is 77297057. The next prime is 77297081. The reversal of 77297063 is 36079277.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77297063 - 2¹² = 77292967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77297063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77297083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38648531 + 38648532.

It is an arithmetic number, because the mean of its divisors is an integer number (38648532).

Almost surely, 2^77297063 is an apocalyptic number.

77297063 is a deficient number, since it is larger than the sum of its proper divisors (1).

77297063 is an equidigital number, since it uses as much as digits as its factorization.

77297063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 77297063 is about 8791.8748284993. The cubic root of 77297063 is about 425.9784845901.

The spelling of 77297063 in words is "seventy-seven million, two hundred ninety-seven thousand, sixty-three".