76863013 has 2 divisors, whose sum is σ = 76863014. Its totient is φ = 76863012.

The previous prime is 76863011. The next prime is 76863019. The reversal of 76863013 is 31036867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76615009 + 248004 = 8753^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 76863013 - 2¹ = 76863011 is a prime.

Together with 76863011, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 76863013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76863011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38431506 + 38431507.

It is an arithmetic number, because the mean of its divisors is an integer number (38431507).

Almost surely, 2^76863013 is an apocalyptic number.

It is an amenable number.

76863013 is a deficient number, since it is larger than the sum of its proper divisors (1).

76863013 is an equidigital number, since it uses as much as digits as its factorization.

76863013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 76863013 is about 8767.1553539332. The cubic root of 76863013 is about 425.1796481579.

The spelling of 76863013 in words is "seventy-six million, eight hundred sixty-three thousand, thirteen".