99743807 has 4 divisors (see below), whose sum is σ = 101434440. Its totient is φ = 98053176.

The previous prime is 99743797. The next prime is 99743821. The reversal of 99743807 is 70834799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70834799 = 7 ⋅10119257.

It is a cyclic number.

It is not a de Polignac number, because 99743807 - 2²⁴ = 82966591 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 (99743837) 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, 845228 + ... + 845345.

It is an arithmetic number, because the mean of its divisors is an integer number (25358610).

Almost surely, 2^99743807 is an apocalyptic number.

99743807 is a deficient number, since it is larger than the sum of its proper divisors (1690633).

99743807 is a wasteful number, since it uses less digits than its factorization.

99743807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690632.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 99743807 is about 9987.1821351170. The cubic root of 99743807 is about 463.7621635226.

The spelling of 99743807 in words is "ninety-nine million, seven hundred forty-three thousand, eight hundred seven".