999953099 has 4 divisors (see below), whose sum is σ = 1000678560. Its totient is φ = 999227640.

The previous prime is 999953093. The next prime is 999953111. The reversal of 999953099 is 990359999.

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 999953099 - 2¹² = 999949003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999953093) 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, 360659 + ... + 363420.

It is an arithmetic number, because the mean of its divisors is an integer number (250169640).

Almost surely, 2^999953099 is an apocalyptic number.

999953099 is a deficient number, since it is larger than the sum of its proper divisors (725461).

999953099 is a wasteful number, since it uses less digits than its factorization.

999953099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725460.

The product of its (nonzero) digits is 7971615, while the sum is 62.

The square root of 999953099 is about 31622.0350230658. The cubic root of 999953099 is about 999.9843660889.

The spelling of 999953099 in words is "nine hundred ninety-nine million, nine hundred fifty-three thousand, ninety-nine".