99673811 has 4 divisors (see below), whose sum is σ = 99711624. Its totient is φ = 99636000.

The previous prime is 99673807. The next prime is 99673813. The reversal of 99673811 is 11837699.

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 99673811 - 2² = 99673807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99673813) 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, 14630 + ... + 20331.

It is an arithmetic number, because the mean of its divisors is an integer number (24927906).

Almost surely, 2^99673811 is an apocalyptic number.

99673811 is a deficient number, since it is larger than the sum of its proper divisors (37813).

99673811 is a wasteful number, since it uses less digits than its factorization.

99673811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37812.

The product of its digits is 81648, while the sum is 44.

The square root of 99673811 is about 9983.6772283563. The cubic root of 99673811 is about 463.6536552229.

The spelling of 99673811 in words is "ninety-nine million, six hundred seventy-three thousand, eight hundred eleven".