212450447 has 16 divisors (see below), whose sum is σ = 237105792. Its totient is φ = 188716320.

The previous prime is 212450443. The next prime is 212450449. The reversal of 212450447 is 744054212.

It is a cyclic number.

It is not a de Polignac number, because 212450447 - 2² = 212450443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212450443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178388 + ... + 179574.

It is an arithmetic number, because the mean of its divisors is an integer number (14819112).

Almost surely, 2^212450447 is an apocalyptic number.

212450447 is a deficient number, since it is larger than the sum of its proper divisors (24655345).

212450447 is a wasteful number, since it uses less digits than its factorization.

212450447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 212450447 is about 14575.6799841380. The cubic root of 212450447 is about 596.6952075164.

The spelling of 212450447 in words is "two hundred twelve million, four hundred fifty thousand, four hundred forty-seven".