428658279 has 16 divisors (see below), whose sum is σ = 653482752. Its totient is φ = 244839168.

The previous prime is 428658277. The next prime is 428658289. The reversal of 428658279 is 972856824.

It is not a de Polignac number, because 428658279 - 2¹ = 428658277 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428658277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92512 + ... + 97034.

It is an arithmetic number, because the mean of its divisors is an integer number (40842672).

Almost surely, 2^428658279 is an apocalyptic number.

428658279 is a deficient number, since it is larger than the sum of its proper divisors (224824473).

428658279 is a wasteful number, since it uses less digits than its factorization.

428658279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046.

The product of its digits is 1935360, while the sum is 51.

The square root of 428658279 is about 20704.0643111443. The cubic root of 428658279 is about 753.9983670902.

The spelling of 428658279 in words is "four hundred twenty-eight million, six hundred fifty-eight thousand, two hundred seventy-nine".