99806737 has 4 divisors (see below), whose sum is σ = 99912420. Its totient is φ = 99701056.

The previous prime is 99806731. The next prime is 99806743. The reversal of 99806737 is 73760899.

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

It is an interprime number because it is at equal distance from previous prime (99806731) and next prime (99806743).

It can be written as a sum of positive squares in 2 ways, for example, as 77158656 + 22648081 = 8784^2 + 4759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99806737 is a prime.

It is a super-2 number, since 2×99806737² = 19922769501174338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99806731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51412 + ... + 53317.

It is an arithmetic number, because the mean of its divisors is an integer number (24978105).

Almost surely, 2^99806737 is an apocalyptic number.

It is an amenable number.

99806737 is a deficient number, since it is larger than the sum of its proper divisors (105683).

99806737 is a wasteful number, since it uses less digits than its factorization.

99806737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105682.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 99806737 is about 9990.3321766596. The cubic root of 99806737 is about 463.8596747310.

The spelling of 99806737 in words is "ninety-nine million, eight hundred six thousand, seven hundred thirty-seven".