212766427 has 8 divisors (see below), whose sum is σ = 224106560. Its totient is φ = 201440520.

The previous prime is 212766413. The next prime is 212766461. The reversal of 212766427 is 724667212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212766427 - 2¹⁵ = 212733659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212766497) 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 7 ways as a sum of consecutive naturals, for example, 42688 + ... + 47410.

It is an arithmetic number, because the mean of its divisors is an integer number (28013320).

Almost surely, 2^212766427 is an apocalyptic number.

212766427 is a deficient number, since it is larger than the sum of its proper divisors (11340133).

212766427 is a wasteful number, since it uses less digits than its factorization.

212766427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113.

The product of its digits is 56448, while the sum is 37.

The square root of 212766427 is about 14586.5152452531. The cubic root of 212766427 is about 596.9908848647.

The spelling of 212766427 in words is "two hundred twelve million, seven hundred sixty-six thousand, four hundred twenty-seven".