3990577 has 4 divisors (see below), whose sum is σ = 3995380. Its totient is φ = 3985776.

The previous prime is 3990541. The next prime is 3990593. The reversal of 3990577 is 7750993.

3990577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7750993 = 19 ⋅407947.

It can be written as a sum of positive squares in 2 ways, for example, as 2027776 + 1962801 = 1424^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 3990577 - 2⁷ = 3990449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3990977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798 + ... + 2935.

It is an arithmetic number, because the mean of its divisors is an integer number (998845).

Almost surely, 2^3990577 is an apocalyptic number.

It is an amenable number.

3990577 is a deficient number, since it is larger than the sum of its proper divisors (4803).

3990577 is a wasteful number, since it uses less digits than its factorization.

3990577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802.

The product of its (nonzero) digits is 59535, while the sum is 40.

The square root of 3990577 is about 1997.6428609739. The cubic root of 3990577 is about 158.6153565190.

The spelling of 3990577 in words is "three million, nine hundred ninety thousand, five hundred seventy-seven".