9958261 has 4 divisors (see below), whose sum is σ = 10482400. Its totient is φ = 9434124.

The previous prime is 9958259. The next prime is 9958271. The reversal of 9958261 is 1628599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9958261 - 2¹ = 9958259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9958231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262041 + ... + 262078.

It is an arithmetic number, because the mean of its divisors is an integer number (2620600).

Almost surely, 2^9958261 is an apocalyptic number.

It is an amenable number.

9958261 is a deficient number, since it is larger than the sum of its proper divisors (524139).

9958261 is a wasteful number, since it uses less digits than its factorization.

9958261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524138.

The product of its digits is 38880, while the sum is 40.

The square root of 9958261 is about 3155.6712439670. The cubic root of 9958261 is about 215.1433044977.

The spelling of 9958261 in words is "nine million, nine hundred fifty-eight thousand, two hundred sixty-one".