212646674 has 4 divisors (see below), whose sum is σ = 318970014. Its totient is φ = 106323336.

The previous prime is 212646673. The next prime is 212646697. The reversal of 212646674 is 476646212.

212646674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 207561649 + 5085025 = 14407^2 + 2255^2 .

It is not an unprimeable number, because it can be changed into a prime (212646673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53161667 + ... + 53161670.

Almost surely, 2^212646674 is an apocalyptic number.

212646674 is a deficient number, since it is larger than the sum of its proper divisors (106323340).

212646674 is a wasteful number, since it uses less digits than its factorization.

212646674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106323339.

The product of its digits is 96768, while the sum is 38.

The square root of 212646674 is about 14582.4097459919. The cubic root of 212646674 is about 596.8788608213.

The spelling of 212646674 in words is "two hundred twelve million, six hundred forty-six thousand, six hundred seventy-four".