99994807 has 4 divisors (see below), whose sum is σ = 109085256. Its totient is φ = 90904360.

The previous prime is 99994801. The next prime is 99994819. The reversal of 99994807 is 70849999.

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

It is a cyclic number.

It is not a de Polignac number, because 99994807 - 2⁷ = 99994679 is a prime.

It is a super-2 number, since 2×99994807² = 19997922853934498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99994801) 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, 4545208 + ... + 4545229.

It is an arithmetic number, because the mean of its divisors is an integer number (27271314).

Almost surely, 2^99994807 is an apocalyptic number.

99994807 is a deficient number, since it is larger than the sum of its proper divisors (9090449).

99994807 is a wasteful number, since it uses less digits than its factorization.

99994807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090448.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The square root of 99994807 is about 9999.7403466290. The cubic root of 99994807 is about 464.1508486319.

The spelling of 99994807 in words is "ninety-nine million, nine hundred ninety-four thousand, eight hundred seven".