851014393 has 8 divisors (see below), whose sum is σ = 878550728. Its totient is φ = 823716864.

The previous prime is 851014391. The next prime is 851014453. The reversal of 851014393 is 393410158.

It can be written as a sum of positive squares in 4 ways, for example, as 387774864 + 463239529 = 19692^2 + 21523^2 .

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 851014393 - 2¹ = 851014391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851014391) 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, 52446 + ... + 66727.

It is an arithmetic number, because the mean of its divisors is an integer number (109818841).

Almost surely, 2^851014393 is an apocalyptic number.

It is an amenable number.

851014393 is a deficient number, since it is larger than the sum of its proper divisors (27536335).

851014393 is a wasteful number, since it uses less digits than its factorization.

851014393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119403.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 851014393 is about 29172.1509834294. The cubic root of 851014393 is about 947.6449118032.

The spelling of 851014393 in words is "eight hundred fifty-one million, fourteen thousand, three hundred ninety-three".