3972758 has 8 divisors (see below), whose sum is σ = 5971320. Its totient is φ = 1982320.

The previous prime is 3972757. The next prime is 3972791. The reversal of 3972758 is 8572793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3972758² = 31565612253128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608 + ... + 2883.

It is an arithmetic number, because the mean of its divisors is an integer number (746415).

Almost surely, 2^3972758 is an apocalyptic number.

3972758 is a deficient number, since it is larger than the sum of its proper divisors (1998562).

3972758 is a wasteful number, since it uses less digits than its factorization.

3972758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062.

The product of its digits is 105840, while the sum is 41.

The square root of 3972758 is about 1993.1778646172. The cubic root of 3972758 is about 158.3789174999.

The spelling of 3972758 in words is "three million, nine hundred seventy-two thousand, seven hundred fifty-eight".