397004588309 has 32 divisors (see below), whose sum is σ = 483939827712. Its totient is φ = 317921760000.

The previous prime is 397004588237. The next prime is 397004588341. The reversal of 397004588309 is 903885400793.

It is not a de Polignac number, because 397004588309 - 2¹⁶ = 397004522773 is a prime.

It is a super-2 number, since 2×397004588309² (a number of 24 digits) 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 (397004588009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27503324 + ... + 27517754.

It is an arithmetic number, because the mean of its divisors is an integer number (15123119616).

Almost surely, 2^397004588309 is an apocalyptic number.

It is an amenable number.

397004588309 is a deficient number, since it is larger than the sum of its proper divisors (86935239403).

397004588309 is a wasteful number, since it uses less digits than its factorization.

397004588309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 397004588309 in words is "three hundred ninety-seven billion, four million, five hundred eighty-eight thousand, three hundred nine".