1099107387 has 60 divisors (see below), whose sum is σ = 1971769536. Its totient is φ = 607733280.

The previous prime is 1099107349. The next prime is 1099107389. The reversal of 1099107387 is 7837019901.

It is not a de Polignac number, because 1099107387 - 2¹⁴ = 1099091003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1099107389) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 118573 + ... + 127505.

Almost surely, 2^1099107387 is an apocalyptic number.

1099107387 is a deficient number, since it is larger than the sum of its proper divisors (872662149).

1099107387 is an equidigital number, since it uses as much as digits as its factorization.

1099107387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990 (or 8974 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 1099107387 is about 33152.7885252508. The cubic root of 1099107387 is about 1032.0008196992. Note that the first 3 decimals are identical.

The spelling of 1099107387 in words is "one billion, ninety-nine million, one hundred seven thousand, three hundred eighty-seven".