212713377 has 4 divisors (see below), whose sum is σ = 283617840. Its totient is φ = 141808916.

The previous prime is 212713357. The next prime is 212713387. The reversal of 212713377 is 773317212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212713377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212713307) 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 3 ways as a sum of consecutive naturals, for example, 35452227 + ... + 35452232.

It is an arithmetic number, because the mean of its divisors is an integer number (70904460).

Almost surely, 2^212713377 is an apocalyptic number.

It is an amenable number.

212713377 is a deficient number, since it is larger than the sum of its proper divisors (70904463).

212713377 is an equidigital number, since it uses as much as digits as its factorization.

212713377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70904462.

The product of its digits is 12348, while the sum is 33.

The square root of 212713377 is about 14584.6966715115. The cubic root of 212713377 is about 596.9412639424.

The spelling of 212713377 in words is "two hundred twelve million, seven hundred thirteen thousand, three hundred seventy-seven".