3980654 has 4 divisors (see below), whose sum is σ = 5970984. Its totient is φ = 1990326.

The previous prime is 3980653. The next prime is 3980657. The reversal of 3980654 is 4560893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4560893 = 19 ⋅240047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995162 + ... + 995165.

It is an arithmetic number, because the mean of its divisors is an integer number (1492746).

Almost surely, 2^3980654 is an apocalyptic number.

3980654 is a deficient number, since it is larger than the sum of its proper divisors (1990330).

3980654 is a wasteful number, since it uses less digits than its factorization.

3980654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990329.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3980654 is about 1995.1576378823. The cubic root of 3980654 is about 158.4837759999.

The spelling of 3980654 in words is "three million, nine hundred eighty thousand, six hundred fifty-four".