212677397 has 8 divisors (see below), whose sum is σ = 220181376. Its totient is φ = 205297632.

The previous prime is 212677351. The next prime is 212677433. The reversal of 212677397 is 793776212.

212677397 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212677397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212677897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27563 + ... + 34424.

It is an arithmetic number, because the mean of its divisors is an integer number (27522672).

Almost surely, 2^212677397 is an apocalyptic number.

It is an amenable number.

212677397 is a deficient number, since it is larger than the sum of its proper divisors (7503979).

212677397 is an equidigital number, since it uses as much as digits as its factorization.

212677397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62107.

The product of its digits is 222264, while the sum is 44.

The square root of 212677397 is about 14583.4631346604. The cubic root of 212677397 is about 596.9076049438.

The spelling of 212677397 in words is "two hundred twelve million, six hundred seventy-seven thousand, three hundred ninety-seven".