100505670 has 32 divisors (see below), whose sum is σ = 244523232. Its totient is φ = 26433792.

The previous prime is 100505659. The next prime is 100505729. The reversal of 100505670 is 76505001.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100505670.

It is a congruent number.

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, 20757 + ... + 25136.

It is an arithmetic number, because the mean of its divisors is an integer number (7641351).

Almost surely, 2^100505670 is an apocalyptic number.

100505670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100505670 is an abundant number, since it is smaller than the sum of its proper divisors (144017562).

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

100505670 is a wasteful number, since it uses less digits than its factorization.

100505670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45976.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 100505670 is about 10025.2516177899. The cubic root of 100505670 is about 464.9399390573.

The spelling of 100505670 in words is "one hundred million, five hundred five thousand, six hundred seventy".