6619463 has 4 divisors (see below), whose sum is σ = 6773448. Its totient is φ = 6465480.

The previous prime is 6619451. The next prime is 6619471. The reversal of 6619463 is 3649166.

6619463 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3649166 = 2 ⋅1824583.

It is a de Polignac number, because none of the positive numbers 2^k-6619463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6619493) 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, 76928 + ... + 77013.

It is an arithmetic number, because the mean of its divisors is an integer number (1693362).

Almost surely, 2^6619463 is an apocalyptic number.

6619463 is a deficient number, since it is larger than the sum of its proper divisors (153985).

6619463 is a wasteful number, since it uses less digits than its factorization.

6619463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153984.

The product of its digits is 23328, while the sum is 35.

The square root of 6619463 is about 2572.8317084489. The cubic root of 6619463 is about 187.7619497206.

The spelling of 6619463 in words is "six million, six hundred nineteen thousand, four hundred sixty-three".