6623153 has 4 divisors (see below), whose sum is σ = 6971760. Its totient is φ = 6274548.

The previous prime is 6623131. The next prime is 6623159. The reversal of 6623153 is 3513266.

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 an emirpimes, since its reverse is a distinct semiprime: 3513266 = 2 ⋅1756633.

It is a cyclic number.

It is not a de Polignac number, because 6623153 - 2⁸ = 6622897 is a prime.

It is a super-2 number, since 2×6623153² = 87732311322818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6623159) 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, 174275 + ... + 174312.

It is an arithmetic number, because the mean of its divisors is an integer number (1742940).

Almost surely, 2^6623153 is an apocalyptic number.

It is an amenable number.

6623153 is a deficient number, since it is larger than the sum of its proper divisors (348607).

6623153 is a wasteful number, since it uses less digits than its factorization.

6623153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348606.

The product of its digits is 3240, while the sum is 26.

The square root of 6623153 is about 2573.5487172385. The cubic root of 6623153 is about 187.7968323535.

It can be divided in two parts, 6623 and 153, that added together give a palindrome (6776).

The spelling of 6623153 in words is "six million, six hundred twenty-three thousand, one hundred fifty-three".