100285789 has 2 divisors, whose sum is σ = 100285790. Its totient is φ = 100285788.

The previous prime is 100285753. The next prime is 100285807. The reversal of 100285789 is 987582001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76422564 + 23863225 = 8742^2 + 4885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100285789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100285709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50142894 + 50142895.

It is an arithmetic number, because the mean of its divisors is an integer number (50142895).

Almost surely, 2^100285789 is an apocalyptic number.

It is an amenable number.

100285789 is a deficient number, since it is larger than the sum of its proper divisors (1).

100285789 is an equidigital number, since it uses as much as digits as its factorization.

100285789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 100285789 is about 10014.2792551436. The cubic root of 100285789 is about 464.6006344798.

The spelling of 100285789 in words is "one hundred million, two hundred eighty-five thousand, seven hundred eighty-nine".