6491597 has 8 divisors (see below), whose sum is σ = 7809600. Its totient is φ = 5271264.

The previous prime is 6491561. The next prime is 6491623. The reversal of 6491597 is 7951946.

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 6491597 - 2⁶ = 6491533 is a prime.

It is a super-2 number, since 2×6491597² = 84281663220818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491557) 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, 24272 + ... + 24537.

It is an arithmetic number, because the mean of its divisors is an integer number (976200).

Almost surely, 2^6491597 is an apocalyptic number.

It is an amenable number.

6491597 is a deficient number, since it is larger than the sum of its proper divisors (1318003).

6491597 is a wasteful number, since it uses less digits than its factorization.

6491597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48835.

The product of its digits is 68040, while the sum is 41.

The square root of 6491597 is about 2547.8612599590. The cubic root of 6491597 is about 186.5451019010.

The spelling of 6491597 in words is "six million, four hundred ninety-one thousand, five hundred ninety-seven".