212698436 has 6 divisors (see below), whose sum is σ = 372222270. Its totient is φ = 106349216.

The previous prime is 212698433. The next prime is 212698469. The reversal of 212698436 is 634896212.

It can be written as a sum of positive squares in only one way, i.e., 211120900 + 1577536 = 14530^2 + 1256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212698393 and 212698402.

It is not an unprimeable number, because it can be changed into a prime (212698433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26587301 + ... + 26587308.

It is an arithmetic number, because the mean of its divisors is an integer number (62037045).

Almost surely, 2^212698436 is an apocalyptic number.

It is an amenable number.

212698436 is a deficient number, since it is larger than the sum of its proper divisors (159523834).

212698436 is a wasteful number, since it uses less digits than its factorization.

212698436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53174613 (or 53174611 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 212698436 is about 14584.1844475445. The cubic root of 212698436 is about 596.9272872188.

The spelling of 212698436 in words is "two hundred twelve million, six hundred ninety-eight thousand, four hundred thirty-six".