428093783 has 4 divisors (see below), whose sum is σ = 461024088. Its totient is φ = 395163480.

The previous prime is 428093777. The next prime is 428093789. The reversal of 428093783 is 387390824.

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

It is an interprime number because it is at equal distance from previous prime (428093777) and next prime (428093789).

It is a cyclic number.

It is not a de Polignac number, because 428093783 - 2⁸ = 428093527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428093789) 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, 16465133 + ... + 16465158.

It is an arithmetic number, because the mean of its divisors is an integer number (115256022).

Almost surely, 2^428093783 is an apocalyptic number.

428093783 is a deficient number, since it is larger than the sum of its proper divisors (32930305).

428093783 is a wasteful number, since it uses less digits than its factorization.

428093783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32930304.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 428093783 is about 20690.4273276315. The cubic root of 428093783 is about 753.6672439435.

The spelling of 428093783 in words is "four hundred twenty-eight million, ninety-three thousand, seven hundred eighty-three".