9900437 has 2 divisors, whose sum is σ = 9900438. Its totient is φ = 9900436.

The previous prime is 9900427. The next prime is 9900461. The reversal of 9900437 is 7340099.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5410276 + 4490161 = 2326^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 9900437 - 2⁴ = 9900421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9900427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950218 + 4950219.

It is an arithmetic number, because the mean of its divisors is an integer number (4950219).

Almost surely, 2^9900437 is an apocalyptic number.

It is an amenable number.

9900437 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900437 is an equidigital number, since it uses as much as digits as its factorization.

9900437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 9900437 is about 3146.4959876027. The cubic root of 9900437 is about 214.7260762465.

The spelling of 9900437 in words is "nine million, nine hundred thousand, four hundred thirty-seven".