3920970 has 16 divisors (see below), whose sum is σ = 9410400. Its totient is φ = 1045584.

The previous prime is 3920957. The next prime is 3920977. The reversal of 3920970 is 790293.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 130699 = 3920970 / (3 + 9 + 2 + 0 + 9 + 7 + 0).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3920977) 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, 65320 + ... + 65379.

It is an arithmetic number, because the mean of its divisors is an integer number (588150).

Almost surely, 2^3920970 is an apocalyptic number.

3920970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3920970 is an abundant number, since it is smaller than the sum of its proper divisors (5489430).

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

3920970 is a wasteful number, since it uses less digits than its factorization.

3920970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130709.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 3920970 is about 1980.1439341624. The cubic root of 3920970 is about 157.6877076710.

The spelling of 3920970 in words is "three million, nine hundred twenty thousand, nine hundred seventy".