213970028 has 12 divisors (see below), whose sum is σ = 374889480. Its totient is φ = 106858752.

The previous prime is 213970027. The next prime is 213970079. The reversal of 213970028 is 820079312.

It is a junction number, because it is equal to n+sod(n) for n = 213969976 and 213970003.

It is not an unprimeable number, because it can be changed into a prime (213970027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27701 + ... + 34572.

It is an arithmetic number, because the mean of its divisors is an integer number (31240790).

Almost surely, 2^213970028 is an apocalyptic number.

It is an amenable number.

213970028 is a deficient number, since it is larger than the sum of its proper divisors (160919452).

213970028 is a wasteful number, since it uses less digits than its factorization.

213970028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63136 (or 63134 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 213970028 is about 14627.7143805859. The cubic root of 213970028 is about 598.1144771760.

The spelling of 213970028 in words is "two hundred thirteen million, nine hundred seventy thousand, twenty-eight".