100027765 has 16 divisors (see below), whose sum is σ = 121379328. Its totient is φ = 79131456.

The previous prime is 100027693. The next prime is 100027789. The reversal of 100027765 is 567720001.

It is a cyclic number.

It is not a de Polignac number, because 100027765 - 2²⁵ = 66473333 is a prime.

It is a super-4 number, since 4×100027765⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315387 + ... + 315703.

It is an arithmetic number, because the mean of its divisors is an integer number (7586208).

Almost surely, 2^100027765 is an apocalyptic number.

It is an amenable number.

100027765 is a deficient number, since it is larger than the sum of its proper divisors (21351563).

100027765 is a wasteful number, since it uses less digits than its factorization.

100027765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 100027765 is about 10001.3881536515. The cubic root of 100027765 is about 464.2018372908.

Adding to 100027765 its reverse (567720001), we get a palindrome (667747766).

The spelling of 100027765 in words is "one hundred million, twenty-seven thousand, seven hundred sixty-five".