212473810 has 8 divisors (see below), whose sum is σ = 382452876. Its totient is φ = 84989520.

The previous prime is 212473799. The next prime is 212473813. The reversal of 212473810 is 18374212.

212473810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 186677569 + 25796241 = 13663^2 + 5079^2 .

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

It is a super-2 number, since 2×212473810² = 90290239871832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212473813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10623681 + ... + 10623700.

Almost surely, 2^212473810 is an apocalyptic number.

212473810 is a deficient number, since it is larger than the sum of its proper divisors (169979066).

212473810 is a wasteful number, since it uses less digits than its factorization.

212473810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21247388.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 212473810 is about 14576.4813998441. The cubic root of 212473810 is about 596.7170794076.

The spelling of 212473810 in words is "two hundred twelve million, four hundred seventy-three thousand, eight hundred ten".