9725859 has 48 divisors (see below), whose sum is σ = 17130400. Its totient is φ = 5417280.

The previous prime is 9725839. The next prime is 9725873. The reversal of 9725859 is 9585279.

9725859 = T₂₉₅ + T₂₉₆ + ... + T₄₃₇.

It is a happy number.

9725859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9725859 - 2⁵ = 9725827 is a prime.

It is a Duffinian number.

9725859 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42357 + ... + 42585.

Almost surely, 2^9725859 is an apocalyptic number.

9725859 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

9725859 is a deficient number, since it is larger than the sum of its proper divisors (7404541).

9725859 is a wasteful number, since it uses less digits than its factorization.

9725859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 256 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 9725859 is about 3118.6309496316. The cubic root of 9725859 is about 213.4564699814.

The spelling of 9725859 in words is "nine million, seven hundred twenty-five thousand, eight hundred fifty-nine".