3990770 has 32 divisors (see below), whose sum is σ = 8391168. Its totient is φ = 1338048.

The previous prime is 3990761. The next prime is 3990773. The reversal of 3990770 is 770993.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 3990770.

It is not an unprimeable number, because it can be changed into a prime (3990773) 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 15 ways as a sum of consecutive naturals, for example, 2684 + ... + 3896.

It is an arithmetic number, because the mean of its divisors is an integer number (262224).

Almost surely, 2^3990770 is an apocalyptic number.

3990770 is an abundant number, since it is smaller than the sum of its proper divisors (4400398).

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

3990770 is a wasteful number, since it uses less digits than its factorization.

3990770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its (nonzero) digits is 11907, while the sum is 35.

The square root of 3990770 is about 1997.6911673229. The cubic root of 3990770 is about 158.6179135653.

It can be divided in two parts, 39 and 90770, that added together give a palindrome (90809).

The spelling of 3990770 in words is "three million, nine hundred ninety thousand, seven hundred seventy".