212508863 has 16 divisors (see below), whose sum is σ = 261891840. Its totient is φ = 168350400.

The previous prime is 212508827. The next prime is 212508911. The reversal of 212508863 is 368805212.

It is a cyclic number.

It is not a de Polignac number, because 212508863 - 2¹⁰ = 212507839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212508463) 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, 14033 + ... + 24938.

It is an arithmetic number, because the mean of its divisors is an integer number (16368240).

Almost surely, 2^212508863 is an apocalyptic number.

212508863 is a deficient number, since it is larger than the sum of its proper divisors (49382977).

212508863 is a wasteful number, since it uses less digits than its factorization.

212508863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39038.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 212508863 is about 14577.6837323355. The cubic root of 212508863 is about 596.7498921946.

The spelling of 212508863 in words is "two hundred twelve million, five hundred eight thousand, eight hundred sixty-three".