212876663 has 2 divisors, whose sum is σ = 212876664. Its totient is φ = 212876662.

The previous prime is 212876591. The next prime is 212876681. The reversal of 212876663 is 366678212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212876663 - 2⁸ = 212876407 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212876663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212876263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106438331 + 106438332.

It is an arithmetic number, because the mean of its divisors is an integer number (106438332).

Almost surely, 2^212876663 is an apocalyptic number.

212876663 is a deficient number, since it is larger than the sum of its proper divisors (1).

212876663 is an equidigital number, since it uses as much as digits as its factorization.

212876663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 212876663 is about 14590.2934514697. The cubic root of 212876663 is about 597.0939689929.

The spelling of 212876663 in words is "two hundred twelve million, eight hundred seventy-six thousand, six hundred sixty-three".