9879261 has 16 divisors (see below), whose sum is σ = 15940224. Its totient is φ = 5313024.

The previous prime is 9879257. The next prime is 9879263. The reversal of 9879261 is 1629789.

It is not a de Polignac number, because 9879261 - 2² = 9879257 is a prime.

It is a super-2 number, since 2×9879261² = 195199595812242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13480 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (996264).

Almost surely, 2^9879261 is an apocalyptic number.

It is an amenable number.

9879261 is a deficient number, since it is larger than the sum of its proper divisors (6060963).

9879261 is a wasteful number, since it uses less digits than its factorization.

9879261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27700.

The product of its digits is 54432, while the sum is 42.

The square root of 9879261 is about 3143.1291732921. The cubic root of 9879261 is about 214.5728747555.

The spelling of 9879261 in words is "nine million, eight hundred seventy-nine thousand, two hundred sixty-one".