3980697 has 16 divisors (see below), whose sum is σ = 6116352. Its totient is φ = 2255760.

The previous prime is 3980693. The next prime is 3980729. The reversal of 3980697 is 7960893.

It is a happy number.

It is not a de Polignac number, because 3980697 - 2² = 3980693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3980693) 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, 2028 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (382272).

Almost surely, 2^3980697 is an apocalyptic number.

It is an amenable number.

3980697 is a deficient number, since it is larger than the sum of its proper divisors (2135655).

3980697 is a wasteful number, since it uses less digits than its factorization.

3980697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3980697 is about 1995.1684139440. The cubic root of 3980697 is about 158.4843466581.

It can be divided in two parts, 39806 and 97, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 3980697 in words is "three million, nine hundred eighty thousand, six hundred ninety-seven".