851713403 has 2 divisors, whose sum is σ = 851713404. Its totient is φ = 851713402.

The previous prime is 851713393. The next prime is 851713409. The reversal of 851713403 is 304317158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 851713403 - 2¹⁸ = 851451259 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 851713403.

It is not a weakly prime, because it can be changed into another prime (851713409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425856701 + 425856702.

It is an arithmetic number, because the mean of its divisors is an integer number (425856702).

Almost surely, 2^851713403 is an apocalyptic number.

851713403 is a deficient number, since it is larger than the sum of its proper divisors (1).

851713403 is an equidigital number, since it uses as much as digits as its factorization.

851713403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 851713403 is about 29184.1293000151. The cubic root of 851713403 is about 947.9043010656.

The spelling of 851713403 in words is "eight hundred fifty-one million, seven hundred thirteen thousand, four hundred three".