11640653 has 8 divisors (see below), whose sum is σ = 11878776. Its totient is φ = 11404800.

The previous prime is 11640649. The next prime is 11640677. The reversal of 11640653 is 35604611.

It can be written as a sum of positive squares in 4 ways, for example, as 94249 + 11546404 = 307^2 + 3398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11640653 - 2² = 11640649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640613) 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, 12773 + ... + 13653.

It is an arithmetic number, because the mean of its divisors is an integer number (1484847).

Almost surely, 2^11640653 is an apocalyptic number.

It is an amenable number.

11640653 is a deficient number, since it is larger than the sum of its proper divisors (238123).

11640653 is an equidigital number, since it uses as much as digits as its factorization.

11640653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 11640653 is about 3411.8401193491. The cubic root of 11640653 is about 226.6343742443.

The spelling of 11640653 in words is "eleven million, six hundred forty thousand, six hundred fifty-three".