212969746 has 32 divisors (see below), whose sum is σ = 367960320. Its totient is φ = 91429200.

The previous prime is 212969717. The next prime is 212969749. The reversal of 212969746 is 647969212.

It is a super-2 number, since 2×212969746² = 90712225422609032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212969696 and 212969705.

It is not an unprimeable number, because it can be changed into a prime (212969749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194661 + ... + 195751.

It is an arithmetic number, because the mean of its divisors is an integer number (11498760).

Almost surely, 2^212969746 is an apocalyptic number.

212969746 is a deficient number, since it is larger than the sum of its proper divisors (154990574).

212969746 is a wasteful number, since it uses less digits than its factorization.

212969746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its digits is 326592, while the sum is 46.

The square root of 212969746 is about 14593.4829975575. The cubic root of 212969746 is about 597.1809852619.

The spelling of 212969746 in words is "two hundred twelve million, nine hundred sixty-nine thousand, seven hundred forty-six".