3935990 has 32 divisors (see below), whose sum is σ = 7508160. Its totient is φ = 1482624.

The previous prime is 3935989. The next prime is 3935999. The reversal of 3935990 is 995393.

3935990 = 125² + 126² + ... + 239².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3935999) 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 15 ways as a sum of consecutive naturals, for example, 24992 + ... + 25148.

It is an arithmetic number, because the mean of its divisors is an integer number (234630).

Almost surely, 2^3935990 is an apocalyptic number.

3935990 is a deficient number, since it is larger than the sum of its proper divisors (3572170).

3935990 is a wasteful number, since it uses less digits than its factorization.

3935990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 3935990 is about 1983.9329625771. The cubic root of 3935990 is about 157.8888017457. Note that the first 4 decimals are identical.

The spelling of 3935990 in words is "three million, nine hundred thirty-five thousand, nine hundred ninety".