428837851 has 4 divisors (see below), whose sum is σ = 461825392. Its totient is φ = 395850312.

The previous prime is 428837803. The next prime is 428837861. The reversal of 428837851 is 158738824.

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

It is not a de Polignac number, because 428837851 - 2⁷ = 428837723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428837861) 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, 16493751 + ... + 16493776.

It is an arithmetic number, because the mean of its divisors is an integer number (115456348).

Almost surely, 2^428837851 is an apocalyptic number.

428837851 is a deficient number, since it is larger than the sum of its proper divisors (32987541).

428837851 is a wasteful number, since it uses less digits than its factorization.

428837851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32987540.

The product of its digits is 430080, while the sum is 46.

The square root of 428837851 is about 20708.4004935195. The cubic root of 428837851 is about 754.1036398285.

The spelling of 428837851 in words is "four hundred twenty-eight million, eight hundred thirty-seven thousand, eight hundred fifty-one".