806428553 has 8 divisors (see below), whose sum is σ = 961703808. Its totient is φ = 661171104.

The previous prime is 806428517. The next prime is 806428561. The reversal of 806428553 is 355824608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 806428553 - 2¹² = 806424457 is a prime.

It is a super-2 number, since 2×806428553² = 1300654022187347618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 806428553.

It is not an unprimeable number, because it can be changed into a prime (806428573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504276 + ... + 2504597.

It is an arithmetic number, because the mean of its divisors is an integer number (120212976).

Almost surely, 2^806428553 is an apocalyptic number.

It is an amenable number.

806428553 is a deficient number, since it is larger than the sum of its proper divisors (155275255).

806428553 is a wasteful number, since it uses less digits than its factorization.

806428553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008903.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 806428553 is about 28397.6856979579. The cubic root of 806428553 is about 930.7976942115.

The spelling of 806428553 in words is "eight hundred six million, four hundred twenty-eight thousand, five hundred fifty-three".