6623761 has 8 divisors (see below), whose sum is σ = 7382880. Its totient is φ = 5905728.

The previous prime is 6623759. The next prime is 6623789. The reversal of 6623761 is 1673266.

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 6623761 - 2¹ = 6623759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6623711) 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, 9931 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (922860).

Almost surely, 2^6623761 is an apocalyptic number.

It is an amenable number.

6623761 is a deficient number, since it is larger than the sum of its proper divisors (759119).

6623761 is a wasteful number, since it uses less digits than its factorization.

6623761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20543.

The product of its digits is 9072, while the sum is 31.

The square root of 6623761 is about 2573.6668393559. Note that the first 3 decimals coincide. The cubic root of 6623761 is about 187.8025787093.

The spelling of 6623761 in words is "six million, six hundred twenty-three thousand, seven hundred sixty-one".