3977611 has 16 divisors (see below), whose sum is σ = 4623840. Its totient is φ = 3386880.

The previous prime is 3977599. The next prime is 3977621. The reversal of 3977611 is 1167793.

It is a happy number.

It is a 9-Lehmer number, since φ(3977611) divides (3977611-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 3977611 - 2⁷ = 3977483 is a prime.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 3977611 parts by 2820 straight cuts.

It is a Duffinian number.

3977611 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3977621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11635 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (288990).

Almost surely, 2^3977611 is an apocalyptic number.

3977611 is a deficient number, since it is larger than the sum of its proper divisors (646229).

3977611 is a wasteful number, since it uses less digits than its factorization.

3977611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its digits is 7938, while the sum is 34.

The square root of 3977611 is about 1994.3948957015. The cubic root of 3977611 is about 158.4433815429.

It can be divided in two parts, 397 and 7611, that added together give a palindrome (8008).

The spelling of 3977611 in words is "three million, nine hundred seventy-seven thousand, six hundred eleven".