212324978 has 16 divisors (see below), whose sum is σ = 327685176. Its totient is φ = 103119360.

The previous prime is 212324963. The next prime is 212324993. The reversal of 212324978 is 879423212.

It is an interprime number because it is at equal distance from previous prime (212324963) and next prime (212324993).

It can be written as a sum of positive squares in 4 ways, for example, as 28912129 + 183412849 = 5377^2 + 13543^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13550 + ... + 24662.

Almost surely, 2^212324978 is an apocalyptic number.

212324978 is a deficient number, since it is larger than the sum of its proper divisors (115360198).

212324978 is a wasteful number, since it uses less digits than its factorization.

212324978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389.

The product of its digits is 48384, while the sum is 38.

The square root of 212324978 is about 14571.3752954208. The cubic root of 212324978 is about 596.5777189520.

The spelling of 212324978 in words is "two hundred twelve million, three hundred twenty-four thousand, nine hundred seventy-eight".