3497985 has 24 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 1864944.

The previous prime is 3497959. The next prime is 3497987. The reversal of 3497985 is 5897943.

It is not a de Polignac number, because 3497985 - 2¹³ = 3489793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3497985.

It is not an unprimeable number, because it can be changed into a prime (3497987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225 + ... + 2654.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

It is a Proth number, since it is equal to 427 ⋅ 2¹³ + 1 and 427 < 2¹³.

Almost surely, 2^3497985 is an apocalyptic number.

It is an amenable number.

3497985 is a deficient number, since it is larger than the sum of its proper divisors (2791935).

3497985 is an equidigital number, since it uses as much as digits as its factorization.

3497985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899 (or 2887 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3497985 is about 1870.2900844521. The cubic root of 3497985 is about 151.8003062063.

The spelling of 3497985 in words is "three million, four hundred ninety-seven thousand, nine hundred eighty-five".