3597648685 has 4 divisors (see below), whose sum is σ = 4317178428. Its totient is φ = 2878118944.

The previous prime is 3597648671. The next prime is 3597648709. The reversal of 3597648685 is 5868467953.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5868467953 = 28283 ⋅207491.

It can be written as a sum of positive squares in 2 ways, for example, as 1234327689 + 2363320996 = 35133^2 + 48614^2 .

It is a cyclic number.

It is not a de Polignac number, because 3597648685 - 2⁵ = 3597648653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 359764864 + ... + 359764873.

It is an arithmetic number, because the mean of its divisors is an integer number (1079294607).

Almost surely, 2^3597648685 is an apocalyptic number.

It is an amenable number.

3597648685 is a deficient number, since it is larger than the sum of its proper divisors (719529743).

3597648685 is an equidigital number, since it uses as much as digits as its factorization.

3597648685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719529742.

The product of its digits is 43545600, while the sum is 61.

The square root of 3597648685 is about 59980.4025078192. The cubic root of 3597648685 is about 1532.2851189925.

It can be divided in two parts, 359764 and 8685, that added together give a square (368449 = 607²).

The spelling of 3597648685 in words is "three billion, five hundred ninety-seven million, six hundred forty-eight thousand, six hundred eighty-five".