996900551 has 2 divisors, whose sum is σ = 996900552. Its totient is φ = 996900550.

The previous prime is 996900547. The next prime is 996900559. The reversal of 996900551 is 155009699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996900551 - 2² = 996900547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996900559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498450275 + 498450276.

It is an arithmetic number, because the mean of its divisors is an integer number (498450276).

Almost surely, 2^996900551 is an apocalyptic number.

996900551 is a deficient number, since it is larger than the sum of its proper divisors (1).

996900551 is an equidigital number, since it uses as much as digits as its factorization.

996900551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 996900551 is about 31573.7319777058. The cubic root of 996900551 is about 998.9657810933.

The spelling of 996900551 in words is "nine hundred ninety-six million, nine hundred thousand, five hundred fifty-one".