212776536 has 32 divisors (see below), whose sum is σ = 607933440. Its totient is φ = 60793248.

The previous prime is 212776493. The next prime is 212776547. The reversal of 212776536 is 635677212.

It is a junction number, because it is equal to n+sod(n) for n = 212776494 and 212776503.

It is a congruent 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, 633096 + ... + 633431.

It is an arithmetic number, because the mean of its divisors is an integer number (18997920).

Almost surely, 2^212776536 is an apocalyptic number.

It is an amenable number.

212776536 is an abundant number, since it is smaller than the sum of its proper divisors (395156904).

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

212776536 is a wasteful number, since it uses less digits than its factorization.

212776536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266543 (or 1266539 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 212776536 is about 14586.8617598166. The cubic root of 212776536 is about 597.0003394974. Note that the first 3 decimals are identical.

It can be divided in two parts, 212776 and 536, that added together give a palindrome (213312).

The spelling of 212776536 in words is "two hundred twelve million, seven hundred seventy-six thousand, five hundred thirty-six".