213226828 has 6 divisors (see below), whose sum is σ = 373146956. Its totient is φ = 106613412.

The previous prime is 213226799. The next prime is 213226831. The reversal of 213226828 is 828622312.

It is a happy number.

213226828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213226793 and 213226802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26653350 + ... + 26653357.

Almost surely, 2^213226828 is an apocalyptic number.

It is an amenable number.

213226828 is a deficient number, since it is larger than the sum of its proper divisors (159920128).

213226828 is a wasteful number, since it uses less digits than its factorization.

213226828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53306711 (or 53306709 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 213226828 is about 14602.2884507874. The cubic root of 213226828 is about 597.4211801749.

The spelling of 213226828 in words is "two hundred thirteen million, two hundred twenty-six thousand, eight hundred twenty-eight".