212938874 has 4 divisors (see below), whose sum is σ = 319408314. Its totient is φ = 106469436.

The previous prime is 212938867. The next prime is 212938961. The reversal of 212938874 is 478839212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 198612649 + 14326225 = 14093^2 + 3785^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53234717 + ... + 53234720.

Almost surely, 2^212938874 is an apocalyptic number.

212938874 is a deficient number, since it is larger than the sum of its proper divisors (106469440).

212938874 is a wasteful number, since it uses less digits than its factorization.

212938874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106469439.

The product of its digits is 193536, while the sum is 44.

The square root of 212938874 is about 14592.4252268086. The cubic root of 212938874 is about 597.1521281705.

The spelling of 212938874 in words is "two hundred twelve million, nine hundred thirty-eight thousand, eight hundred seventy-four".