2291653 has 8 divisors (see below), whose sum is σ = 2820608. Its totient is φ = 1813104.

The previous prime is 2291629. The next prime is 2291657. The reversal of 2291653 is 3561922.

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-2291653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291657) 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 7 ways as a sum of consecutive naturals, for example, 12501 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (352576).

2^2291653 is an apocalyptic number.

It is an amenable number.

2291653 is a deficient number, since it is larger than the sum of its proper divisors (528955).

2291653 is a wasteful number, since it uses less digits than its factorization.

2291653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25203.

The product of its digits is 3240, while the sum is 28.

The square root of 2291653 is about 1513.8206630906. The cubic root of 2291653 is about 131.8407361400.

The spelling of 2291653 in words is "two million, two hundred ninety-one thousand, six hundred fifty-three".