212758379 has 2 divisors, whose sum is σ = 212758380. Its totient is φ = 212758378.

The previous prime is 212758369. The next prime is 212758411. The reversal of 212758379 is 973857212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212758379 is a prime.

It is a super-2 number, since 2×212758379² = 90532255669415282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212758309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106379189 + 106379190.

It is an arithmetic number, because the mean of its divisors is an integer number (106379190).

Almost surely, 2^212758379 is an apocalyptic number.

212758379 is a deficient number, since it is larger than the sum of its proper divisors (1).

212758379 is an equidigital number, since it uses as much as digits as its factorization.

212758379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 212758379 is about 14586.2393714076. The cubic root of 212758379 is about 596.9833576069.

It can be divided in two parts, 2127 and 58379, that added together give a palindrome (60506).

The spelling of 212758379 in words is "two hundred twelve million, seven hundred fifty-eight thousand, three hundred seventy-nine".