100634389 has 2 divisors, whose sum is σ = 100634390. Its totient is φ = 100634388.

The previous prime is 100634357. The next prime is 100634447. The reversal of 100634389 is 983436001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 33489 = 10030^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 100634389 - 2⁵ = 100634357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100634489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50317194 + 50317195.

It is an arithmetic number, because the mean of its divisors is an integer number (50317195).

Almost surely, 2^100634389 is an apocalyptic number.

It is an amenable number.

100634389 is a deficient number, since it is larger than the sum of its proper divisors (1).

100634389 is an equidigital number, since it uses as much as digits as its factorization.

100634389 is an evil number, because the sum of its binary digits is even.

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

The square root of 100634389 is about 10031.6693027631. The cubic root of 100634389 is about 465.1383393843.

The spelling of 100634389 in words is "one hundred million, six hundred thirty-four thousand, three hundred eighty-nine".