996951 has 4 divisors (see below), whose sum is σ = 1329272. Its totient is φ = 664632.

The previous prime is 996899. The next prime is 996953. The reversal of 996951 is 159699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159699 = 3 ⋅53233.

It is not a de Polignac number, because 996951 - 2⁶ = 996887 is a prime.

It is a super-2 number, since 2×996951² = 1987822592802, which contains 22 as substring.

It is a D-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 (996953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166156 + ... + 166161.

It is an arithmetic number, because the mean of its divisors is an integer number (332318).

2⁹⁹⁶⁹⁵¹ is an apocalyptic number.

996951 is a deficient number, since it is larger than the sum of its proper divisors (332321).

996951 is a wasteful number, since it uses less digits than its factorization.

996951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332320.

The product of its digits is 21870, while the sum is 39.

The square root of 996951 is about 998.4743361749. The cubic root of 996951 is about 99.8982631980.

The spelling of 996951 in words is "nine hundred ninety-six thousand, nine hundred fifty-one".