212948797 has 2 divisors, whose sum is σ = 212948798. Its totient is φ = 212948796.

The previous prime is 212948773. The next prime is 212948843. The reversal of 212948797 is 797849212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173686041 + 39262756 = 13179^2 + 6266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212948797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212948797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212948717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106474398 + 106474399.

It is an arithmetic number, because the mean of its divisors is an integer number (106474399).

Almost surely, 2^212948797 is an apocalyptic number.

It is an amenable number.

212948797 is a deficient number, since it is larger than the sum of its proper divisors (1).

212948797 is an equidigital number, since it uses as much as digits as its factorization.

212948797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 49.

The square root of 212948797 is about 14592.7652280162. The cubic root of 212948797 is about 597.1614038348.

The spelling of 212948797 in words is "two hundred twelve million, nine hundred forty-eight thousand, seven hundred ninety-seven".