100389634 has 4 divisors (see below), whose sum is σ = 150584454. Its totient is φ = 50194816.

The previous prime is 100389617. The next prime is 100389691. The reversal of 100389634 is 436983001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 93180409 + 7209225 = 9653^2 + 2685^2 .

It is a super-2 number, since 2×100389634² = 20156157229307912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100389634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25097407 + ... + 25097410.

Almost surely, 2^100389634 is an apocalyptic number.

100389634 is a deficient number, since it is larger than the sum of its proper divisors (50194820).

100389634 is an equidigital number, since it uses as much as digits as its factorization.

100389634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50194819.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 100389634 is about 10019.4627600486. The cubic root of 100389634 is about 464.7609423693.

The spelling of 100389634 in words is "one hundred million, three hundred eighty-nine thousand, six hundred thirty-four".