3980651 has 4 divisors (see below), whose sum is σ = 4015992. Its totient is φ = 3945312.

The previous prime is 3980629. The next prime is 3980653. The reversal of 3980651 is 1560893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3980651 - 2¹⁰ = 3979627 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 17501 + ... + 17726.

It is an arithmetic number, because the mean of its divisors is an integer number (1003998).

Almost surely, 2^3980651 is an apocalyptic number.

3980651 is a deficient number, since it is larger than the sum of its proper divisors (35341).

3980651 is a wasteful number, since it uses less digits than its factorization.

3980651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35340.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3980651 is about 1995.1568860618. The cubic root of 3980651 is about 158.4837361864.

The spelling of 3980651 in words is "three million, nine hundred eighty thousand, six hundred fifty-one".