214279769 has 4 divisors (see below), whose sum is σ = 233759760. Its totient is φ = 194799780.

The previous prime is 214279757. The next prime is 214279771. The reversal of 214279769 is 967972412.

214279769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214279769 is a prime.

It is a super-2 number, since 2×214279769² = 91831638805386722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214279729) 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, 9739979 + ... + 9740000.

It is an arithmetic number, because the mean of its divisors is an integer number (58439940).

Almost surely, 2^214279769 is an apocalyptic number.

It is an amenable number.

214279769 is a deficient number, since it is larger than the sum of its proper divisors (19479991).

214279769 is a wasteful number, since it uses less digits than its factorization.

214279769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19479990.

The product of its digits is 381024, while the sum is 47.

The square root of 214279769 is about 14638.2980226528. The cubic root of 214279769 is about 598.4029463228.

The spelling of 214279769 in words is "two hundred fourteen million, two hundred seventy-nine thousand, seven hundred sixty-nine".