6651023 has 8 divisors (see below), whose sum is σ = 6881328. Its totient is φ = 6424704.

The previous prime is 6650993. The next prime is 6651049. The reversal of 6651023 is 3201566.

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 6651023 - 2¹⁰ = 6649999 is a prime.

It is a super-2 number, since 2×6651023² = 88472213893058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6651023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651053) 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, 2615 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (860166).

Almost surely, 2^6651023 is an apocalyptic number.

6651023 is a deficient number, since it is larger than the sum of its proper divisors (230305).

6651023 is a wasteful number, since it uses less digits than its factorization.

6651023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 6651023 is about 2578.9577352101. The cubic root of 6651023 is about 188.0598779391.

Adding to 6651023 its reverse (3201566), we get a palindrome (9852589).

The spelling of 6651023 in words is "six million, six hundred fifty-one thousand, twenty-three".