97769863 has 2 divisors, whose sum is σ = 97769864. Its totient is φ = 97769862.

The previous prime is 97769857. The next prime is 97769897. The reversal of 97769863 is 36896779.

It is a weak prime.

It is an emirp because it is prime and its reverse (36896779) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97769863 is a prime.

It is a super-2 number, since 2×97769863² = 19117892222077538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97769843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48884931 + 48884932.

It is an arithmetic number, because the mean of its divisors is an integer number (48884932).

Almost surely, 2^97769863 is an apocalyptic number.

97769863 is a deficient number, since it is larger than the sum of its proper divisors (1).

97769863 is an equidigital number, since it uses as much as digits as its factorization.

97769863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 97769863 is about 9887.8644307049. The cubic root of 97769863 is about 460.6824511053.

The spelling of 97769863 in words is "ninety-seven million, seven hundred sixty-nine thousand, eight hundred sixty-three".