996835261 has 4 divisors (see below), whose sum is σ = 998222400. Its totient is φ = 995448124.

The previous prime is 996835223. The next prime is 996835277. The reversal of 996835261 is 162538699.

It is the 12890-th star number.

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 996835261 - 2²⁷ = 862617533 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996835211) 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, 692491 + ... + 693928.

It is an arithmetic number, because the mean of its divisors is an integer number (249555600).

Almost surely, 2^996835261 is an apocalyptic number.

It is an amenable number.

996835261 is a deficient number, since it is larger than the sum of its proper divisors (1387139).

996835261 is a wasteful number, since it uses less digits than its factorization.

996835261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387138.

The product of its digits is 699840, while the sum is 49.

The square root of 996835261 is about 31572.6980316855. The cubic root of 996835261 is about 998.9439721978.

The spelling of 996835261 in words is "nine hundred ninety-six million, eight hundred thirty-five thousand, two hundred sixty-one".