213976899 has 6 divisors (see below), whose sum is σ = 309077756. Its totient is φ = 142651260.

The previous prime is 213976891. The next prime is 213976949. The reversal of 213976899 is 998679312.

It is not a de Polignac number, because 213976899 - 2³ = 213976891 is a prime.

It is a super-2 number, since 2×213976899² = 91572226611312402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213976891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11887597 + ... + 11887614.

Almost surely, 2^213976899 is an apocalyptic number.

213976899 is a deficient number, since it is larger than the sum of its proper divisors (95100857).

213976899 is a wasteful number, since it uses less digits than its factorization.

213976899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23775217 (or 23775214 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 213976899 is about 14627.9492410932. The cubic root of 213976899 is about 598.1208793196.

The spelling of 213976899 in words is "two hundred thirteen million, nine hundred seventy-six thousand, eight hundred ninety-nine".