9725261 has 8 divisors (see below), whose sum is σ = 11969664. Its totient is φ = 7694640.

The previous prime is 9725257. The next prime is 9725269. The reversal of 9725261 is 1625279.

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 9725261 - 2² = 9725257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53345 + ... + 53526.

It is an arithmetic number, because the mean of its divisors is an integer number (1496208).

Almost surely, 2^9725261 is an apocalyptic number.

9725261 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

9725261 is a deficient number, since it is larger than the sum of its proper divisors (2244403).

9725261 is a wasteful number, since it uses less digits than its factorization.

9725261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106891.

The product of its digits is 7560, while the sum is 32.

The square root of 9725261 is about 3118.5350727545. The cubic root of 9725261 is about 213.4520950607.

The spelling of 9725261 in words is "nine million, seven hundred twenty-five thousand, two hundred sixty-one".