3972748 has 24 divisors (see below), whose sum is σ = 7883120. Its totient is φ = 1736640.

The previous prime is 3972737. The next prime is 3972751. The reversal of 3972748 is 8472793.

It is a d-powerful number, because it can be written as 3⁷ + 9³ + 7² + 2²¹ + 7⁷ + 4¹⁰ + 8³ .

It is a self number, because there is not a number n which added to its sum of digits gives 3972748.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023 + ... + 2998.

Almost surely, 2^3972748 is an apocalyptic number.

3972748 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3972748 is a deficient number, since it is larger than the sum of its proper divisors (3910372).

3972748 is a wasteful number, since it uses less digits than its factorization.

3972748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057 (or 4055 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 3972748 is about 1993.1753560588. The cubic root of 3972748 is about 158.3787846123.

The spelling of 3972748 in words is "three million, nine hundred seventy-two thousand, seven hundred forty-eight".