3904577 has 4 divisors (see below), whose sum is σ = 4134276. Its totient is φ = 3674880.

The previous prime is 3904547. The next prime is 3904591. The reversal of 3904577 is 7754093.

It is a Cunningham number, because it is equal to 1976²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7754093 = 227 ⋅34159.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 863041 = 1744^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 3904577 - 2⁸ = 3904321 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3904517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114824 + ... + 114857.

It is an arithmetic number, because the mean of its divisors is an integer number (1033569).

Almost surely, 2^3904577 is an apocalyptic number.

It is an amenable number.

3904577 is a deficient number, since it is larger than the sum of its proper divisors (229699).

3904577 is a wasteful number, since it uses less digits than its factorization.

3904577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229698.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 3904577 is about 1976.0002530364. Note that the first 3 decimals coincide. The cubic root of 3904577 is about 157.4676443152.

The spelling of 3904577 in words is "three million, nine hundred four thousand, five hundred seventy-seven".