99994045 has 4 divisors (see below), whose sum is σ = 119992860. Its totient is φ = 79995232.

The previous prime is 99994043. The next prime is 99994061. The reversal of 99994045 is 54049999.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79905721 + 20088324 = 8939^2 + 4482^2 .

It is a cyclic number.

It is not a de Polignac number, because 99994045 - 2¹ = 99994043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99994045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99994043) 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, 9999400 + ... + 9999409.

It is an arithmetic number, because the mean of its divisors is an integer number (29998215).

Almost surely, 2^99994045 is an apocalyptic number.

It is an amenable number.

99994045 is a deficient number, since it is larger than the sum of its proper divisors (19998815).

99994045 is a wasteful number, since it uses less digits than its factorization.

99994045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19998814.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 99994045 is about 9999.7022455671. The cubic root of 99994045 is about 464.1496696245.

The spelling of 99994045 in words is "ninety-nine million, nine hundred ninety-four thousand, forty-five".