212876747 has 4 divisors (see below), whose sum is σ = 214305600. Its totient is φ = 211447896.

The previous prime is 212876711. The next prime is 212876759. The reversal of 212876747 is 747678212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212876747 - 2¹² = 212872651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212876698 and 212876707.

It is not an unprimeable number, because it can be changed into a prime (212876777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714203 + ... + 714500.

It is an arithmetic number, because the mean of its divisors is an integer number (53576400).

Almost surely, 2^212876747 is an apocalyptic number.

212876747 is a deficient number, since it is larger than the sum of its proper divisors (1428853).

212876747 is a wasteful number, since it uses less digits than its factorization.

212876747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428852.

The product of its digits is 263424, while the sum is 44.

The square root of 212876747 is about 14590.2963300956. The cubic root of 212876747 is about 597.0940475296.

The spelling of 212876747 in words is "two hundred twelve million, eight hundred seventy-six thousand, seven hundred forty-seven".