3297640 has 32 divisors (see below), whose sum is σ = 7812000. Its totient is φ = 1249344.

The previous prime is 3297617. The next prime is 3297647. The reversal of 3297640 is 467923.

It is not an unprimeable number, because it can be changed into a prime (3297647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410 + ... + 2929.

It is an arithmetic number, because the mean of its divisors is an integer number (244125).

Almost surely, 2^3297640 is an apocalyptic number.

It is an amenable number.

3297640 is an abundant number, since it is smaller than the sum of its proper divisors (4514360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3297640 is a wasteful number, since it uses less digits than its factorization.

3297640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 3297640 is about 1815.9405276605. The cubic root of 3297640 is about 148.8450561134.

The spelling of 3297640 in words is "three million, two hundred ninety-seven thousand, six hundred forty".