77484863 has 2 divisors, whose sum is σ = 77484864. Its totient is φ = 77484862.

The previous prime is 77484853. The next prime is 77484881. The reversal of 77484863 is 36848477.

It is a weak prime.

It is an emirp because it is prime and its reverse (36848477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77484863 - 2¹⁰ = 77483839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77484853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38742431 + 38742432.

It is an arithmetic number, because the mean of its divisors is an integer number (38742432).

Almost surely, 2^77484863 is an apocalyptic number.

77484863 is a deficient number, since it is larger than the sum of its proper divisors (1).

77484863 is an equidigital number, since it uses as much as digits as its factorization.

77484863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The square root of 77484863 is about 8802.5486650174. The cubic root of 77484863 is about 426.3231896177.

The spelling of 77484863 in words is "seventy-seven million, four hundred eighty-four thousand, eight hundred sixty-three".