6423761 has 4 divisors (see below), whose sum is σ = 6645300. Its totient is φ = 6202224.

The previous prime is 6423751. The next prime is 6423763. The reversal of 6423761 is 1673246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1673246 = 2 ⋅836623.

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 3763600 = 1631^2 + 1940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6423761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 221509 = 6423761 / (6 + 4 + 2 + 3 + 7 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6423763) 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, 110726 + ... + 110783.

It is an arithmetic number, because the mean of its divisors is an integer number (1661325).

Almost surely, 2^6423761 is an apocalyptic number.

It is an amenable number.

6423761 is a deficient number, since it is larger than the sum of its proper divisors (221539).

6423761 is a wasteful number, since it uses less digits than its factorization.

6423761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221538.

The product of its digits is 6048, while the sum is 29.

The square root of 6423761 is about 2534.5139573496. The cubic root of 6423761 is about 185.8930378965.

The spelling of 6423761 in words is "six million, four hundred twenty-three thousand, seven hundred sixty-one".