906608641 has 4 divisors (see below), whose sum is σ = 946026432. Its totient is φ = 867190852.

The previous prime is 906608627. The next prime is 906608723. The reversal of 906608641 is 146806609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146806609 = 41 ⋅3580649.

It is a cyclic number.

It is not a de Polignac number, because 906608641 - 2²⁹ = 369737729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 906608594 and 906608603.

It is not an unprimeable number, because it can be changed into a prime (906608611) 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, 19708861 + ... + 19708906.

It is an arithmetic number, because the mean of its divisors is an integer number (236506608).

Almost surely, 2^906608641 is an apocalyptic number.

It is an amenable number.

906608641 is a deficient number, since it is larger than the sum of its proper divisors (39417791).

906608641 is a wasteful number, since it uses less digits than its factorization.

906608641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39417790.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 906608641 is about 30109.9425605563. The cubic root of 906608641 is about 967.8467989596.

The spelling of 906608641 in words is "nine hundred six million, six hundred eight thousand, six hundred forty-one".