699825401 has 12 divisors (see below), whose sum is σ = 769870500. Its totient is φ = 635675040.

The previous prime is 699825391. The next prime is 699825407. The reversal of 699825401 is 104528996.

It can be written as a sum of positive squares in 2 ways, for example, as 325441600 + 374383801 = 18040^2 + 19349^2 .

It is not a de Polignac number, because 699825401 - 2¹⁸ = 699563257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699825407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273275 + ... + 275823.

It is an arithmetic number, because the mean of its divisors is an integer number (64155875).

Almost surely, 2^699825401 is an apocalyptic number.

It is an amenable number.

699825401 is a deficient number, since it is larger than the sum of its proper divisors (70045099).

699825401 is a wasteful number, since it uses less digits than its factorization.

699825401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840 (or 4829 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 699825401 is about 26454.2132939160. The cubic root of 699825401 is about 887.8301731512.

The spelling of 699825401 in words is "six hundred ninety-nine million, eight hundred twenty-five thousand, four hundred one".