1099880623 has 4 divisors (see below), whose sum is σ = 1100073960. Its totient is φ = 1099687288.

The previous prime is 1099880609. The next prime is 1099880627. The reversal of 1099880623 is 3260889901.

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 1099880623 - 2¹⁷ = 1099749551 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 (1099880627) 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, 87868 + ... + 99601.

It is an arithmetic number, because the mean of its divisors is an integer number (275018490).

Almost surely, 2^1099880623 is an apocalyptic number.

1099880623 is a deficient number, since it is larger than the sum of its proper divisors (193337).

1099880623 is an equidigital number, since it uses as much as digits as its factorization.

1099880623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193336.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1099880623 is about 33164.4481787350. The cubic root of 1099880623 is about 1032.2427715287.

The spelling of 1099880623 in words is "one billion, ninety-nine million, eight hundred eighty thousand, six hundred twenty-three".