212061879 has 6 divisors (see below), whose sum is σ = 306311616. Its totient is φ = 141374580.

The previous prime is 212061847. The next prime is 212061887. The reversal of 212061879 is 978160212.

It is not a de Polignac number, because 212061879 - 2⁵ = 212061847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212061779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11781207 + ... + 11781224.

It is an arithmetic number, because the mean of its divisors is an integer number (51051936).

Almost surely, 2^212061879 is an apocalyptic number.

212061879 is a deficient number, since it is larger than the sum of its proper divisors (94249737).

212061879 is a wasteful number, since it uses less digits than its factorization.

212061879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23562437 (or 23562434 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 212061879 is about 14562.3445571103. The cubic root of 212061879 is about 596.3312039502.

The spelling of 212061879 in words is "two hundred twelve million, sixty-one thousand, eight hundred seventy-nine".