428061837 has 16 divisors (see below), whose sum is σ = 674778240. Its totient is φ = 236171712.

The previous prime is 428061817. The next prime is 428061839. The reversal of 428061837 is 738160824.

It is not a de Polignac number, because 428061837 - 2⁷ = 428061709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428061795 and 428061804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428061839) 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, 350838 + ... + 352055.

It is an arithmetic number, because the mean of its divisors is an integer number (42173640).

Almost surely, 2^428061837 is an apocalyptic number.

It is an amenable number.

428061837 is a deficient number, since it is larger than the sum of its proper divisors (246716403).

428061837 is a wasteful number, since it uses less digits than its factorization.

428061837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702932.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 428061837 is about 20689.6553137069. The cubic root of 428061837 is about 753.6484962970.

The spelling of 428061837 in words is "four hundred twenty-eight million, sixty-one thousand, eight hundred thirty-seven".