3936290 has 8 divisors (see below), whose sum is σ = 7085340. Its totient is φ = 1574512.

The previous prime is 3936271. The next prime is 3936293. The reversal of 3936290 is 926393.

It can be written as a sum of positive squares in 2 ways, for example, as 3433609 + 502681 = 1853^2 + 709^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3936293) 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 3 ways as a sum of consecutive naturals, for example, 196805 + ... + 196824.

Almost surely, 2^3936290 is an apocalyptic number.

3936290 is a deficient number, since it is larger than the sum of its proper divisors (3149050).

3936290 is a wasteful number, since it uses less digits than its factorization.

3936290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393636.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 3936290 is about 1984.0085685299. The cubic root of 3936290 is about 157.8928130565.

The spelling of 3936290 in words is "three million, nine hundred thirty-six thousand, two hundred ninety".