6261397 has 4 divisors (see below), whose sum is σ = 6414156. Its totient is φ = 6108640.

The previous prime is 6261391. The next prime is 6261401. The reversal of 6261397 is 7931626.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2842596 + 3418801 = 1686^2 + 1849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6261397 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 (6261391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76318 + ... + 76399.

It is an arithmetic number, because the mean of its divisors is an integer number (1603539).

Almost surely, 2^6261397 is an apocalyptic number.

It is an amenable number.

6261397 is a deficient number, since it is larger than the sum of its proper divisors (152759).

6261397 is a wasteful number, since it uses less digits than its factorization.

6261397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152758.

The product of its digits is 13608, while the sum is 34.

The square root of 6261397 is about 2502.2783618135. The cubic root of 6261397 is about 184.3134720293.

The spelling of 6261397 in words is "six million, two hundred sixty-one thousand, three hundred ninety-seven".