996951271 has 4 divisors (see below), whose sum is σ = 1001305000. Its totient is φ = 992597544.

The previous prime is 996951269. The next prime is 996951283. The reversal of 996951271 is 172159699.

996951271 = T₂₅₇₇₉ + T₂₅₇₈₀ + T₂₅₇₈₁.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 996951271 - 2¹ = 996951269 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 (996951671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176521 + ... + 2176978.

It is an arithmetic number, because the mean of its divisors is an integer number (250326250).

Almost surely, 2^996951271 is an apocalyptic number.

996951271 is the 25781-st centered triangular number.

996951271 is a deficient number, since it is larger than the sum of its proper divisors (4353729).

996951271 is a wasteful number, since it uses less digits than its factorization.

996951271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353728.

The product of its digits is 306180, while the sum is 49.

The square root of 996951271 is about 31574.5351668081. The cubic root of 996951271 is about 998.9827224974.

The spelling of 996951271 in words is "nine hundred ninety-six million, nine hundred fifty-one thousand, two hundred seventy-one".