212877671 has 2 divisors, whose sum is σ = 212877672. Its totient is φ = 212877670.

The previous prime is 212877629. The next prime is 212877697. The reversal of 212877671 is 176778212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212877671 - 2⁶ = 212877607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212877601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106438835 + 106438836.

It is an arithmetic number, because the mean of its divisors is an integer number (106438836).

Almost surely, 2^212877671 is an apocalyptic number.

212877671 is a deficient number, since it is larger than the sum of its proper divisors (1).

212877671 is an equidigital number, since it uses as much as digits as its factorization.

212877671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 41.

The square root of 212877671 is about 14590.3279949424. The cubic root of 212877671 is about 597.0949114318.

The spelling of 212877671 in words is "two hundred twelve million, eight hundred seventy-seven thousand, six hundred seventy-one".