100002774 has 16 divisors (see below), whose sum is σ = 200148912. Its totient is φ = 33310368.

The previous prime is 100002769. The next prime is 100002797. The reversal of 100002774 is 477200001.

It is a self number, because there is not a number n which added to its sum of digits gives 100002774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4512 + ... + 14844.

It is an arithmetic number, because the mean of its divisors is an integer number (12509307).

Almost surely, 2^100002774 is an apocalyptic number.

100002774 is an abundant number, since it is smaller than the sum of its proper divisors (100146138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100002774 is a wasteful number, since it uses less digits than its factorization.

100002774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11951.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 100002774 is about 10000.1386990381. The cubic root of 100002774 is about 464.1631752441.

Adding to 100002774 its reverse (477200001), we get a palindrome (577202775).

The spelling of 100002774 in words is "one hundred million, two thousand, seven hundred seventy-four".