428107039 has 4 divisors (see below), whose sum is σ = 453289824. Its totient is φ = 402924256.

The previous prime is 428107033. The next prime is 428107049. The reversal of 428107039 is 930701824.

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 428107039 - 2⁵ = 428107007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428106995 and 428107013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428107033) 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, 12591367 + ... + 12591400.

It is an arithmetic number, because the mean of its divisors is an integer number (113322456).

Almost surely, 2^428107039 is an apocalyptic number.

428107039 is a deficient number, since it is larger than the sum of its proper divisors (25182785).

428107039 is a wasteful number, since it uses less digits than its factorization.

428107039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25182784.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 428107039 is about 20690.7476665296. The cubic root of 428107039 is about 753.6750230098.

The spelling of 428107039 in words is "four hundred twenty-eight million, one hundred seven thousand, thirty-nine".