3972678 has 16 divisors (see below), whose sum is σ = 7970880. Its totient is φ = 1319976.

The previous prime is 3972671. The next prime is 3972697. The reversal of 3972678 is 8762793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401 + ... + 3147.

It is an arithmetic number, because the mean of its divisors is an integer number (498180).

Almost surely, 2^3972678 is an apocalyptic number.

3972678 is an abundant number, since it is smaller than the sum of its proper divisors (3998202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3972678 is a wasteful number, since it uses less digits than its factorization.

3972678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131.

The product of its digits is 127008, while the sum is 42.

The square root of 3972678 is about 1993.1577960613. The cubic root of 3972678 is about 158.3778543930.

The spelling of 3972678 in words is "three million, nine hundred seventy-two thousand, six hundred seventy-eight".