10500649 has 4 divisors (see below), whose sum is σ = 10507264. Its totient is φ = 10494036.

The previous prime is 10500647. The next prime is 10500701. The reversal of 10500649 is 94600501.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94600501 = 1367 ⋅69203.

It is a cyclic number.

It is not a de Polignac number, because 10500649 - 2¹ = 10500647 is a prime.

It is a super-2 number, since 2×10500649² = 220527258842402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10500641) 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, 664 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (2626816).

Almost surely, 2^10500649 is an apocalyptic number.

It is an amenable number.

10500649 is a deficient number, since it is larger than the sum of its proper divisors (6615).

10500649 is an equidigital number, since it uses as much as digits as its factorization.

10500649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10500649 is about 3240.4704905307. The cubic root of 10500649 is about 218.9804685013.

The spelling of 10500649 in words is "ten million, five hundred thousand, six hundred forty-nine".