907649 has 16 divisors (see below), whose sum is σ = 1044480. Its totient is φ = 784080.

The previous prime is 907637. The next prime is 907651. The reversal of 907649 is 946709.

It is a happy number.

907649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 907649 - 2⁸ = 907393 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (907549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13514 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (65280).

2⁹⁰⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

907649 is a deficient number, since it is larger than the sum of its proper divisors (136831).

907649 is a wasteful number, since it uses less digits than its factorization.

907649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 907649 is about 952.7061456714. The cubic root of 907649 is about 96.8216867946.

Subtracting 907649 from its reverse (946709), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 907649 in words is "nine hundred seven thousand, six hundred forty-nine".