3979730 has 8 divisors (see below), whose sum is σ = 7163532. Its totient is φ = 1591888.

The previous prime is 3979711. The next prime is 3979739. The reversal of 3979730 is 379793.

It can be written as a sum of positive squares in 2 ways, for example, as 3433609 + 546121 = 1853^2 + 739^2 .

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 (3979739) 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 3 ways as a sum of consecutive naturals, for example, 198977 + ... + 198996.

Almost surely, 2^3979730 is an apocalyptic number.

3979730 is a deficient number, since it is larger than the sum of its proper divisors (3183802).

3979730 is a wasteful number, since it uses less digits than its factorization.

3979730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397980.

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 3979730 is about 1994.9260637928. The cubic root of 3979730 is about 158.4715124924.

It can be divided in two parts, 397 and 9730, that multiplied together give a triangular number (3862810 = T₂₇₇₉).

The spelling of 3979730 in words is "three million, nine hundred seventy-nine thousand, seven hundred thirty".