805677053 has 8 divisors (see below), whose sum is σ = 814550520. Its totient is φ = 796815360.

The previous prime is 805677049. The next prime is 805677079. The reversal of 805677053 is 350776508.

It can be written as a sum of positive squares in 4 ways, for example, as 351262564 + 454414489 = 18742^2 + 21317^2 .

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 805677053 - 2² = 805677049 is a prime.

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 805677053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805677013) 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, 252653 + ... + 255821.

It is an arithmetic number, because the mean of its divisors is an integer number (101818815).

Almost surely, 2^805677053 is an apocalyptic number.

It is an amenable number.

805677053 is a deficient number, since it is larger than the sum of its proper divisors (8873467).

805677053 is a wasteful number, since it uses less digits than its factorization.

805677053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5887.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 805677053 is about 28384.4509018582. The cubic root of 805677053 is about 930.5084717047.

The spelling of 805677053 in words is "eight hundred five million, six hundred seventy-seven thousand, fifty-three".