909381601 has 4 divisors (see below), whose sum is σ = 909864900. Its totient is φ = 908898304.

The previous prime is 909381581. The next prime is 909381607. The reversal of 909381601 is 106183909.

909381601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106183909 = 13 ⋅8167993.

It can be written as a sum of positive squares in 2 ways, for example, as 404211025 + 505170576 = 20105^2 + 22476^2 .

It is a cyclic number.

It is not a de Polignac number, because 909381601 - 2⁹ = 909381089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (909381607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238816 + ... + 242593.

It is an arithmetic number, because the mean of its divisors is an integer number (227466225).

Almost surely, 2^909381601 is an apocalyptic number.

It is an amenable number.

909381601 is a deficient number, since it is larger than the sum of its proper divisors (483299).

909381601 is a wasteful number, since it uses less digits than its factorization.

909381601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483298.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 909381601 is about 30155.9546524397. The cubic root of 909381601 is about 968.8325491307.

The spelling of 909381601 in words is "nine hundred nine million, three hundred eighty-one thousand, six hundred one".