3856977 has 20 divisors (see below), whose sum is σ = 6102756. Its totient is φ = 2419200.

The previous prime is 3856973. The next prime is 3856987. The reversal of 3856977 is 7796583.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 1347921 = 1584^2 + 1161^2 .

It is not a de Polignac number, because 3856977 - 2² = 3856973 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8⁷ + 5³ + 6⁶ + 9³ + 7³ + 7⁶ .

It is not an unprimeable number, because it can be changed into a prime (3856973) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24 + ... + 2777.

Almost surely, 2^3856977 is an apocalyptic number.

It is an amenable number.

3856977 is a deficient number, since it is larger than the sum of its proper divisors (2245779).

3856977 is a wasteful number, since it uses less digits than its factorization.

3856977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 2821 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 3856977 is about 1963.9187865082. The cubic root of 3856977 is about 156.8251396810.

The spelling of 3856977 in words is "three million, eight hundred fifty-six thousand, nine hundred seventy-seven".