212798061 has 48 divisors (see below), whose sum is σ = 373621248. Its totient is φ = 113932800.

The previous prime is 212798057. The next prime is 212798071. The reversal of 212798061 is 160897212.

It is not a de Polignac number, because 212798061 - 2² = 212798057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212798071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 461371 + ... + 461831.

It is an arithmetic number, because the mean of its divisors is an integer number (7783776).

Almost surely, 2^212798061 is an apocalyptic number.

212798061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212798061 is a deficient number, since it is larger than the sum of its proper divisors (160823187).

212798061 is a wasteful number, since it uses less digits than its factorization.

212798061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 212798061 is about 14587.5995626422. The cubic root of 212798061 is about 597.0204701616.

The spelling of 212798061 in words is "two hundred twelve million, seven hundred ninety-eight thousand, sixty-one".