76998863 has 2 divisors, whose sum is σ = 76998864. Its totient is φ = 76998862.

The previous prime is 76998847. The next prime is 76998881. The reversal of 76998863 is 36889967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76998863 - 2⁴ = 76998847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76998799 and 76998808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76998463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38499431 + 38499432.

It is an arithmetic number, because the mean of its divisors is an integer number (38499432).

Almost surely, 2^76998863 is an apocalyptic number.

76998863 is a deficient number, since it is larger than the sum of its proper divisors (1).

76998863 is an equidigital number, since it uses as much as digits as its factorization.

76998863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 56.

The square root of 76998863 is about 8774.8996005652. The cubic root of 76998863 is about 425.4299924913.

The spelling of 76998863 in words is "seventy-six million, nine hundred ninety-eight thousand, eight hundred sixty-three".