212787234 has 24 divisors (see below), whose sum is σ = 502952112. Its totient is φ = 64480920.

The previous prime is 212787229. The next prime is 212787241. The reversal of 212787234 is 432787212.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537144 + ... + 537539.

It is an arithmetic number, because the mean of its divisors is an integer number (20956338).

Almost surely, 2^212787234 is an apocalyptic number.

212787234 is an abundant number, since it is smaller than the sum of its proper divisors (290164878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212787234 is a wasteful number, since it uses less digits than its factorization.

212787234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074702 (or 1074699 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 212787234 is about 14587.2284550562. The cubic root of 212787234 is about 597.0103446774.

The spelling of 212787234 in words is "two hundred twelve million, seven hundred eighty-seven thousand, two hundred thirty-four".