6623953 has 8 divisors (see below), whose sum is σ = 7611008. Its totient is φ = 5647104.

The previous prime is 6623927. The next prime is 6623959. The reversal of 6623953 is 3593266.

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 6623953 - 2²¹ = 4526801 is a prime.

It is an Ulam number.

It is a Duffinian number.

6623953 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6623959) 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, 1101 + ... + 3802.

It is an arithmetic number, because the mean of its divisors is an integer number (951376).

Almost surely, 2^6623953 is an apocalyptic number.

It is an amenable number.

6623953 is a deficient number, since it is larger than the sum of its proper divisors (987055).

6623953 is a wasteful number, since it uses less digits than its factorization.

6623953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103.

The product of its digits is 29160, while the sum is 34.

The square root of 6623953 is about 2573.7041399508. The cubic root of 6623953 is about 187.8043932749.

The spelling of 6623953 in words is "six million, six hundred twenty-three thousand, nine hundred fifty-three".