212734407 has 8 divisors (see below), whose sum is σ = 283715440. Its totient is φ = 141788160.

The previous prime is 212734367. The next prime is 212734433. The reversal of 212734407 is 704437212.

212734407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-212734407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212734477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14157 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (35464430).

Almost surely, 2^212734407 is an apocalyptic number.

212734407 is a deficient number, since it is larger than the sum of its proper divisors (70981033).

212734407 is a wasteful number, since it uses less digits than its factorization.

212734407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17393.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 212734407 is about 14585.4176148645. The cubic root of 212734407 is about 596.9609355796.

The spelling of 212734407 in words is "two hundred twelve million, seven hundred thirty-four thousand, four hundred seven".