705561803 has 2 divisors, whose sum is σ = 705561804. Its totient is φ = 705561802.

The previous prime is 705561797. The next prime is 705561833. The reversal of 705561803 is 308165507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 705561803 - 2⁶ = 705561739 is a prime.

It is a super-2 number, since 2×705561803² = 995634915705221618, which contains 22 as substring.

It is equal to p_36526049 and since 705561803 and 36526049 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (705561833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352780901 + 352780902.

It is an arithmetic number, because the mean of its divisors is an integer number (352780902).

Almost surely, 2^705561803 is an apocalyptic number.

705561803 is a deficient number, since it is larger than the sum of its proper divisors (1).

705561803 is an equidigital number, since it uses as much as digits as its factorization.

705561803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 705561803 is about 26562.4133504469. The cubic root of 705561803 is about 890.2493948224.

The spelling of 705561803 in words is "seven hundred five million, five hundred sixty-one thousand, eight hundred three".