3970786 has 8 divisors (see below), whose sum is σ = 5982444. Its totient is φ = 1976640.

The previous prime is 3970781. The next prime is 3970787. The reversal of 3970786 is 6870793.

It can be written as a sum of positive squares in 2 ways, for example, as 3861225 + 109561 = 1965^2 + 331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3970781) 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, 3795 + ... + 4726.

Almost surely, 2^3970786 is an apocalyptic number.

3970786 is a deficient number, since it is larger than the sum of its proper divisors (2011658).

3970786 is a wasteful number, since it uses less digits than its factorization.

3970786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 3970786 is about 1992.6831158014. The cubic root of 3970786 is about 158.3527077553.

It can be divided in two parts, 39707 and 86, that added together give a palindrome (39793).

The spelling of 3970786 in words is "three million, nine hundred seventy thousand, seven hundred eighty-six".