3977697 has 16 divisors (see below), whose sum is σ = 5519808. Its totient is φ = 2545920.

The previous prime is 3977693. The next prime is 3977717. The reversal of 3977697 is 7967793.

It is not a de Polignac number, because 3977697 - 2² = 3977693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3977693) 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, 8758 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (344988).

Almost surely, 2^3977697 is an apocalyptic number.

It is an amenable number.

3977697 is a deficient number, since it is larger than the sum of its proper divisors (1542111).

3977697 is a wasteful number, since it uses less digits than its factorization.

3977697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 500094, while the sum is 48.

The square root of 3977697 is about 1994.4164560091. The cubic root of 3977697 is about 158.4445234370. Note that the first 3 decimals are identical.

The spelling of 3977697 in words is "three million, nine hundred seventy-seven thousand, six hundred ninety-seven".