212487385 has 8 divisors (see below), whose sum is σ = 278165376. Its totient is φ = 154536240.

The previous prime is 212487377. The next prime is 212487391. The reversal of 212487385 is 583784212.

It is a happy number.

212487385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212487385 - 2³ = 212487377 is a prime.

It is a Duffinian 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, 1931649 + ... + 1931758.

It is an arithmetic number, because the mean of its divisors is an integer number (34770672).

Almost surely, 2^212487385 is an apocalyptic number.

It is an amenable number.

212487385 is a deficient number, since it is larger than the sum of its proper divisors (65677991).

212487385 is a wasteful number, since it uses less digits than its factorization.

212487385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863423.

The product of its digits is 107520, while the sum is 40.

The square root of 212487385 is about 14576.9470397611. The cubic root of 212487385 is about 596.7297872669.

The spelling of 212487385 in words is "two hundred twelve million, four hundred eighty-seven thousand, three hundred eighty-five".