230428783 has 4 divisors (see below), whose sum is σ = 248154088. Its totient is φ = 212703480.

The previous prime is 230428777. The next prime is 230428801. The reversal of 230428783 is 387824032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230428783 - 2¹³ = 230420591 is a prime.

It is a super-2 number, since 2×230428783² = 106194848069722178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230428483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8862633 + ... + 8862658.

It is an arithmetic number, because the mean of its divisors is an integer number (62038522).

Almost surely, 2^230428783 is an apocalyptic number.

230428783 is a deficient number, since it is larger than the sum of its proper divisors (17725305).

230428783 is a wasteful number, since it uses less digits than its factorization.

230428783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17725304.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 230428783 is about 15179.8808625101. The cubic root of 230428783 is about 613.0730734218.

The spelling of 230428783 in words is "two hundred thirty million, four hundred twenty-eight thousand, seven hundred eighty-three".