3497978 has 32 divisors (see below), whose sum is σ = 6193152. Its totient is φ = 1465200.

The previous prime is 3497959. The next prime is 3497987. The reversal of 3497978 is 8797943.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15575 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (193536).

Almost surely, 2^3497978 is an apocalyptic number.

3497978 is a deficient number, since it is larger than the sum of its proper divisors (2695174).

3497978 is a wasteful number, since it uses less digits than its factorization.

3497978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 381024, while the sum is 47.

The square root of 3497978 is about 1870.2882130837. The cubic root of 3497978 is about 151.8002049478.

The spelling of 3497978 in words is "three million, four hundred ninety-seven thousand, nine hundred seventy-eight".