996291097 has 4 divisors (see below), whose sum is σ = 996355636. Its totient is φ = 996226560.

The previous prime is 996291091. The next prime is 996291167. The reversal of 996291097 is 790192699.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 790192699 = 6277 ⋅125887.

It can be written as a sum of positive squares in 2 ways, for example, as 404050201 + 592240896 = 20101^2 + 24336^2 .

It is a cyclic number.

It is not a de Polignac number, because 996291097 - 2³ = 996291089 is a prime.

It is a super-2 number, since 2×996291097² = 1985191899922926818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996291091) 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, 6073 + ... + 45049.

It is an arithmetic number, because the mean of its divisors is an integer number (249088909).

Almost surely, 2^996291097 is an apocalyptic number.

It is an amenable number.

996291097 is a deficient number, since it is larger than the sum of its proper divisors (64539).

996291097 is a wasteful number, since it uses less digits than its factorization.

996291097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64538.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 996291097 is about 31564.0792198981. The cubic root of 996291097 is about 998.7621674027.

The spelling of 996291097 in words is "nine hundred ninety-six million, two hundred ninety-one thousand, ninety-seven".