3998770 has 16 divisors (see below), whose sum is σ = 7280280. Its totient is φ = 1581184.

The previous prime is 3998749. The next prime is 3998773. The reversal of 3998770 is 778993.

It can be written as a sum of positive squares in 4 ways, for example, as 3721041 + 277729 = 1929^2 + 527^2 .

It is not an unprimeable number, because it can be changed into a prime (3998773) 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, 1357 + ... + 3136.

Almost surely, 2^3998770 is an apocalyptic number.

3998770 is a deficient number, since it is larger than the sum of its proper divisors (3281510).

3998770 is a wasteful number, since it uses less digits than its factorization.

3998770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 3998770 is about 1999.6924763573. The cubic root of 3998770 is about 158.7238326680.

The spelling of 3998770 in words is "three million, nine hundred ninety-eight thousand, seven hundred seventy".