99839701 has 4 divisors (see below), whose sum is σ = 107519692. Its totient is φ = 92159712.

The previous prime is 99839689. The next prime is 99839713. The reversal of 99839701 is 10793899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10793899 = 37 ⋅291727.

It is an interprime number because it is at equal distance from previous prime (99839689) and next prime (99839713).

It can be written as a sum of positive squares in 2 ways, for example, as 16208676 + 83631025 = 4026^2 + 9145^2 .

It is a cyclic number.

It is not a de Polignac number, because 99839701 - 2²¹ = 97742549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99839771) 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, 3839976 + ... + 3840001.

It is an arithmetic number, because the mean of its divisors is an integer number (26879923).

Almost surely, 2^99839701 is an apocalyptic number.

It is an amenable number.

99839701 is a deficient number, since it is larger than the sum of its proper divisors (7679991).

99839701 is a wasteful number, since it uses less digits than its factorization.

99839701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679990.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 99839701 is about 9991.9818354519. The cubic root of 99839701 is about 463.9107367057.

The spelling of 99839701 in words is "ninety-nine million, eight hundred thirty-nine thousand, seven hundred one".