800854357 has 2 divisors, whose sum is σ = 800854358. Its totient is φ = 800854356.

The previous prime is 800854339. The next prime is 800854361. The reversal of 800854357 is 753458008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770284516 + 30569841 = 27754^2 + 5529^2 .

It is a cyclic number.

It is not a de Polignac number, because 800854357 - 2¹⁵ = 800821589 is a prime.

It is a super-2 number, since 2×800854357² = 1282735402251766898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800854757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400427178 + 400427179.

It is an arithmetic number, because the mean of its divisors is an integer number (400427179).

Almost surely, 2^800854357 is an apocalyptic number.

It is an amenable number.

800854357 is a deficient number, since it is larger than the sum of its proper divisors (1).

800854357 is an equidigital number, since it uses as much as digits as its factorization.

800854357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 800854357 is about 28299.3702580110. The cubic root of 800854357 is about 928.6481136455.

The spelling of 800854357 in words is "eight hundred million, eight hundred fifty-four thousand, three hundred fifty-seven".