3970387 has 8 divisors (see below), whose sum is σ = 4124672. Its totient is φ = 3817800.

The previous prime is 3970363. The next prime is 3970409. The reversal of 3970387 is 7830793.

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

It is a cyclic number.

It is not a de Polignac number, because 3970387 - 2¹¹ = 3968339 is a prime.

It is a Duffinian number.

3970387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3970357) 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, 6238 + ... + 6844.

It is an arithmetic number, because the mean of its divisors is an integer number (515584).

Almost surely, 2^3970387 is an apocalyptic number.

3970387 is a deficient number, since it is larger than the sum of its proper divisors (154285).

3970387 is a wasteful number, since it uses less digits than its factorization.

3970387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3970387 is about 1992.5829970167. The cubic root of 3970387 is about 158.3474036126.

The spelling of 3970387 in words is "three million, nine hundred seventy thousand, three hundred eighty-seven".