6491073 has 4 divisors (see below), whose sum is σ = 8654768. Its totient is φ = 4327380.

The previous prime is 6491047. The next prime is 6491081. The reversal of 6491073 is 3701946.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6491073 - 2⁸ = 6490817 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6491073.

It is not an unprimeable number, because it can be changed into a prime (6491873) 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, 1081843 + ... + 1081848.

It is an arithmetic number, because the mean of its divisors is an integer number (2163692).

Almost surely, 2^6491073 is an apocalyptic number.

It is an amenable number.

6491073 is a deficient number, since it is larger than the sum of its proper divisors (2163695).

6491073 is a wasteful number, since it uses less digits than its factorization.

6491073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163694.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 6491073 is about 2547.7584265389. The cubic root of 6491073 is about 186.5400824754.

The spelling of 6491073 in words is "six million, four hundred ninety-one thousand, seventy-three".