3969577 has 4 divisors (see below), whose sum is σ = 4004820. Its totient is φ = 3934336.

The previous prime is 3969571. The next prime is 3969583. The reversal of 3969577 is 7759693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7759693 = 1279 ⋅6067.

It is an interprime number because it is at equal distance from previous prime (3969571) and next prime (3969583).

It can be written as a sum of positive squares in 2 ways, for example, as 143641 + 3825936 = 379^2 + 1956^2 .

It is a cyclic number.

It is not a de Polignac number, because 3969577 - 2³ = 3969569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3969571) 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, 17452 + ... + 17677.

It is an arithmetic number, because the mean of its divisors is an integer number (1001205).

Almost surely, 2^3969577 is an apocalyptic number.

It is an amenable number.

3969577 is a deficient number, since it is larger than the sum of its proper divisors (35243).

3969577 is a wasteful number, since it uses less digits than its factorization.

3969577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35242.

The product of its digits is 357210, while the sum is 46.

The square root of 3969577 is about 1992.3797328823. The cubic root of 3969577 is about 158.3366347111.

The spelling of 3969577 in words is "three million, nine hundred sixty-nine thousand, five hundred seventy-seven".