906039649 has 8 divisors (see below), whose sum is σ = 922391360. Its totient is φ = 889736400.

The previous prime is 906039619. The next prime is 906039653. The reversal of 906039649 is 946930609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906039649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 906039599 and 906039608.

It is not an unprimeable number, because it can be changed into a prime (906039619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26722 + ... + 50260.

It is an arithmetic number, because the mean of its divisors is an integer number (115298920).

Almost surely, 2^906039649 is an apocalyptic number.

It is an amenable number.

906039649 is a deficient number, since it is larger than the sum of its proper divisors (16351711).

906039649 is a wasteful number, since it uses less digits than its factorization.

906039649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24231.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 906039649 is about 30100.4925042764. The cubic root of 906039649 is about 967.6442814647.

The spelling of 906039649 in words is "nine hundred six million, thirty-nine thousand, six hundred forty-nine".