212977330 has 8 divisors (see below), whose sum is σ = 383359212. Its totient is φ = 85190928.

The previous prime is 212977321. The next prime is 212977333. The reversal of 212977330 is 33779212.

212977330 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 206180881 + 6796449 = 14359^2 + 2607^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212977333) 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, 10648857 + ... + 10648876.

Almost surely, 2^212977330 is an apocalyptic number.

212977330 is a deficient number, since it is larger than the sum of its proper divisors (170381882).

212977330 is a wasteful number, since it uses less digits than its factorization.

212977330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21297740.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 212977330 is about 14593.7428372573. The cubic root of 212977330 is about 597.1880738538.

The spelling of 212977330 in words is "two hundred twelve million, nine hundred seventy-seven thousand, three hundred thirty".