863670077 has 2 divisors, whose sum is σ = 863670078. Its totient is φ = 863670076.

The previous prime is 863670001. The next prime is 863670109. The reversal of 863670077 is 770076368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717114841 + 146555236 = 26779^2 + 12106^2 .

It is a cyclic number.

It is not a de Polignac number, because 863670077 - 2¹⁸ = 863407933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863670377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431835038 + 431835039.

It is an arithmetic number, because the mean of its divisors is an integer number (431835039).

Almost surely, 2^863670077 is an apocalyptic number.

It is an amenable number.

863670077 is a deficient number, since it is larger than the sum of its proper divisors (1).

863670077 is an equidigital number, since it uses as much as digits as its factorization.

863670077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 863670077 is about 29388.2642733456. The cubic root of 863670077 is about 952.3193842381.

The spelling of 863670077 in words is "eight hundred sixty-three million, six hundred seventy thousand, seventy-seven".