10902649 has 4 divisors (see below), whose sum is σ = 10926964. Its totient is φ = 10878336.

The previous prime is 10902643. The next prime is 10902659. The reversal of 10902649 is 94620901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4652649 + 6250000 = 2157^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 10902649 - 2³ = 10902641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10902649.

It is not an unprimeable number, because it can be changed into a prime (10902641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11472 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (2731741).

Almost surely, 2^10902649 is an apocalyptic number.

It is an amenable number.

10902649 is a deficient number, since it is larger than the sum of its proper divisors (24315).

10902649 is an equidigital number, since it uses as much as digits as its factorization.

10902649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24314.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 10902649 is about 3301.9159589547. The cubic root of 10902649 is about 221.7399831598.

The spelling of 10902649 in words is "ten million, nine hundred two thousand, six hundred forty-nine".