99804437 has 2 divisors, whose sum is σ = 99804438. Its totient is φ = 99804436.

The previous prime is 99804431. The next prime is 99804443. The reversal of 99804437 is 73440899.

It is a balanced prime because it is at equal distance from previous prime (99804431) and next prime (99804443).

It can be written as a sum of positive squares in only one way, i.e., 99480676 + 323761 = 9974^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 99804437 - 2⁴ = 99804421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99804431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49902218 + 49902219.

It is an arithmetic number, because the mean of its divisors is an integer number (49902219).

Almost surely, 2^99804437 is an apocalyptic number.

It is an amenable number.

99804437 is a deficient number, since it is larger than the sum of its proper divisors (1).

99804437 is an equidigital number, since it uses as much as digits as its factorization.

99804437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 99804437 is about 9990.2170647089. The cubic root of 99804437 is about 463.8561115599.

The spelling of 99804437 in words is "ninety-nine million, eight hundred four thousand, four hundred thirty-seven".