213469785 has 24 divisors (see below), whose sum is σ = 386103744. Its totient is φ = 108900000.

The previous prime is 213469777. The next prime is 213469801. The reversal of 213469785 is 587964312.

213469785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213469785 - 2³ = 213469777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 213469785.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102091 + ... + 104160.

It is an arithmetic number, because the mean of its divisors is an integer number (16087656).

Almost surely, 2^213469785 is an apocalyptic number.

It is an amenable number.

213469785 is a deficient number, since it is larger than the sum of its proper divisors (172633959).

213469785 is a wasteful number, since it uses less digits than its factorization.

213469785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206285 (or 206282 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 213469785 is about 14610.6052236038. The cubic root of 213469785 is about 597.6480005449.

The spelling of 213469785 in words is "two hundred thirteen million, four hundred sixty-nine thousand, seven hundred eighty-five".