3520994 has 8 divisors (see below), whose sum is σ = 5424348. Its totient is φ = 1712880.

The previous prime is 3520991. The next prime is 3520999. The reversal of 3520994 is 4990253.

It can be written as a sum of positive squares in 2 ways, for example, as 3115225 + 405769 = 1765^2 + 637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3520994.

It is not an unprimeable number, because it can be changed into a prime (3520991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23717 + ... + 23864.

Almost surely, 2^3520994 is an apocalyptic number.

3520994 is a deficient number, since it is larger than the sum of its proper divisors (1903354).

3520994 is a wasteful number, since it uses less digits than its factorization.

3520994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47620.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3520994 is about 1876.4311871209. The cubic root of 3520994 is about 152.1324157751.

The spelling of 3520994 in words is "three million, five hundred twenty thousand, nine hundred ninety-four".