212970927 has 24 divisors (see below), whose sum is σ = 315822864. Its totient is φ = 127505664.

The previous prime is 212970913. The next prime is 212970997. The reversal of 212970927 is 729079212.

It is not a de Polignac number, because 212970927 - 2⁸ = 212970671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212970997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13083 + ... + 24435.

It is an arithmetic number, because the mean of its divisors is an integer number (13159286).

Almost surely, 2^212970927 is an apocalyptic number.

212970927 is a deficient number, since it is larger than the sum of its proper divisors (102851937).

212970927 is a wasteful number, since it uses less digits than its factorization.

212970927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11419 (or 11406 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 212970927 is about 14593.5234607685. The cubic root of 212970927 is about 597.1820891268.

The spelling of 212970927 in words is "two hundred twelve million, nine hundred seventy thousand, nine hundred twenty-seven".