213999628 has 6 divisors (see below), whose sum is σ = 374499356. Its totient is φ = 106999812.

The previous prime is 213999619. The next prime is 213999631. The reversal of 213999628 is 826999312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26749950 + ... + 26749957.

Almost surely, 2^213999628 is an apocalyptic number.

It is an amenable number.

213999628 is a deficient number, since it is larger than the sum of its proper divisors (160499728).

213999628 is a wasteful number, since it uses less digits than its factorization.

213999628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53499911 (or 53499909 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 213999628 is about 14628.7261236240. The cubic root of 213999628 is about 598.1420563847.

The spelling of 213999628 in words is "two hundred thirteen million, nine hundred ninety-nine thousand, six hundred twenty-eight".