212977339 has 2 divisors, whose sum is σ = 212977340. Its totient is φ = 212977338.

The previous prime is 212977333. The next prime is 212977361. The reversal of 212977339 is 933779212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212977339 - 2⁷ = 212977211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212977295 and 212977304.

It is not a weakly prime, because it can be changed into another prime (212977333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106488669 + 106488670.

It is an arithmetic number, because the mean of its divisors is an integer number (106488670).

Almost surely, 2^212977339 is an apocalyptic number.

212977339 is a deficient number, since it is larger than the sum of its proper divisors (1).

212977339 is an equidigital number, since it uses as much as digits as its factorization.

212977339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 43.

The square root of 212977339 is about 14593.7431456087. The cubic root of 212977339 is about 597.1880822658.

The spelling of 212977339 in words is "two hundred twelve million, nine hundred seventy-seven thousand, three hundred thirty-nine".