100284047 has 4 divisors (see below), whose sum is σ = 100499256. Its totient is φ = 100068840.

The previous prime is 100284031. The next prime is 100284049. The reversal of 100284047 is 740482001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740482001 = 7 ⋅105783143.

It is a cyclic number.

It is not a de Polignac number, because 100284047 - 2⁴ = 100284031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100284049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 106904 + ... + 107837.

It is an arithmetic number, because the mean of its divisors is an integer number (25124814).

Almost surely, 2^100284047 is an apocalyptic number.

100284047 is a deficient number, since it is larger than the sum of its proper divisors (215209).

100284047 is an equidigital number, since it uses as much as digits as its factorization.

100284047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215208.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 100284047 is about 10014.1922789609. The cubic root of 100284047 is about 464.5979443712.

The spelling of 100284047 in words is "one hundred million, two hundred eighty-four thousand, forty-seven".