212398533 has 12 divisors (see below), whose sum is σ = 309006880. Its totient is φ = 140579496.

The previous prime is 212398517. The next prime is 212398547. The reversal of 212398533 is 335893212.

212398533 is a `hidden beast` number, since 212 + 398 + 53 + 3 = 666.

212398533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212398533 - 2⁴ = 212398517 is a prime.

It is a super-2 number, since 2×212398533² = 90226273641104178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212398933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83641 + ... + 86142.

Almost surely, 2^212398533 is an apocalyptic number.

It is an amenable number.

212398533 is a deficient number, since it is larger than the sum of its proper divisors (96608347).

212398533 is a wasteful number, since it uses less digits than its factorization.

212398533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169928 (or 169925 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 212398533 is about 14573.8990321739. The cubic root of 212398533 is about 596.6466011097.

The spelling of 212398533 in words is "two hundred twelve million, three hundred ninety-eight thousand, five hundred thirty-three".