996354551 has 4 divisors (see below), whose sum is σ = 1017553632. Its totient is φ = 975155472.

The previous prime is 996354467. The next prime is 996354553. The reversal of 996354551 is 155453699.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996354551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 21199033 = 996354551 / (9 + 9 + 6 + 3 + 5 + 4 + 5 + 5 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 996354496 and 996354505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996354553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10599470 + ... + 10599563.

It is an arithmetic number, because the mean of its divisors is an integer number (254388408).

Almost surely, 2^996354551 is an apocalyptic number.

996354551 is a deficient number, since it is larger than the sum of its proper divisors (21199081).

996354551 is a wasteful number, since it uses less digits than its factorization.

996354551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21199080.

The product of its digits is 729000, while the sum is 47.

The square root of 996354551 is about 31565.0843654821. The cubic root of 996354551 is about 998.7833707469.

The spelling of 996354551 in words is "nine hundred ninety-six million, three hundred fifty-four thousand, five hundred fifty-one".