6309397 has 4 divisors (see below), whose sum is σ = 6680556. Its totient is φ = 5938240.

The previous prime is 6309389. The next prime is 6309437. The reversal of 6309397 is 7939036.

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 1874161 + 4435236 = 1369^2 + 2106^2 .

It is a cyclic number.

It is not a de Polignac number, because 6309397 - 2³ = 6309389 is a prime.

It is a d-powerful number, because it can be written as 6 + 3³ + 0 + 9⁴ + 3¹² + 9⁴ + 7⁸ .

It is a Duffinian number.

6309397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6309377) 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, 185554 + ... + 185587.

It is an arithmetic number, because the mean of its divisors is an integer number (1670139).

Almost surely, 2^6309397 is an apocalyptic number.

It is an amenable number.

6309397 is a deficient number, since it is larger than the sum of its proper divisors (371159).

6309397 is a wasteful number, since it uses less digits than its factorization.

6309397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371158.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 6309397 is about 2511.8513092936. The cubic root of 6309397 is about 184.7832572458.

It can be divided in two parts, 63093 and 97, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 6309397 in words is "six million, three hundred nine thousand, three hundred ninety-seven".