6601963 has 4 divisors (see below), whose sum is σ = 6620320. Its totient is φ = 6583608.

The previous prime is 6601961. The next prime is 6601993. The reversal of 6601963 is 3691066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6601963 - 2¹ = 6601961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6601961) 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, 8628 + ... + 9361.

It is an arithmetic number, because the mean of its divisors is an integer number (1655080).

Almost surely, 2^6601963 is an apocalyptic number.

6601963 is a deficient number, since it is larger than the sum of its proper divisors (18357).

6601963 is a wasteful number, since it uses less digits than its factorization.

6601963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18356.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 6601963 is about 2569.4285356865. The cubic root of 6601963 is about 187.5963404162.

The spelling of 6601963 in words is "six million, six hundred one thousand, nine hundred sixty-three".