1117990635 has 16 divisors (see below), whose sum is σ = 1894008096. Its totient is φ = 561187328.

The previous prime is 1117990607. The next prime is 1117990649. The reversal of 1117990635 is 5360997111.

It is a cyclic number.

It is not a de Polignac number, because 1117990635 - 2⁹ = 1117990123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191884 + ... + 2192393.

It is an arithmetic number, because the mean of its divisors is an integer number (118375506).

Almost surely, 2^1117990635 is an apocalyptic number.

1117990635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117990635 is a deficient number, since it is larger than the sum of its proper divisors (776017461).

1117990635 is a wasteful number, since it uses less digits than its factorization.

1117990635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384302.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 1117990635 is about 33436.3669527657. The cubic root of 1117990635 is about 1037.8774000307.

The spelling of 1117990635 in words is "one billion, one hundred seventeen million, nine hundred ninety thousand, six hundred thirty-five".