212612797 has 2 divisors, whose sum is σ = 212612798. Its totient is φ = 212612796.

The previous prime is 212612791. The next prime is 212612843. The reversal of 212612797 is 797216212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211818916 + 793881 = 14554^2 + 891^2 .

It is a cyclic number.

It is not a de Polignac number, because 212612797 - 2³ = 212612789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212612791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106306398 + 106306399.

It is an arithmetic number, because the mean of its divisors is an integer number (106306399).

Almost surely, 2^212612797 is an apocalyptic number.

It is an amenable number.

212612797 is a deficient number, since it is larger than the sum of its proper divisors (1).

212612797 is an equidigital number, since it uses as much as digits as its factorization.

212612797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 212612797 is about 14581.2481290183. The cubic root of 212612797 is about 596.8471626391.

The spelling of 212612797 in words is "two hundred twelve million, six hundred twelve thousand, seven hundred ninety-seven".