3879780 has 24 divisors (see below), whose sum is σ = 10863552. Its totient is φ = 1034592.

The previous prime is 3879773. The next prime is 3879793. The reversal of 3879780 is 879783.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32272 + ... + 32391.

It is an arithmetic number, because the mean of its divisors is an integer number (452648).

Almost surely, 2^3879780 is an apocalyptic number.

3879780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3879780 is an abundant number, since it is smaller than the sum of its proper divisors (6983772).

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

3879780 is a wasteful number, since it uses less digits than its factorization.

3879780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64675 (or 64673 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 3879780 is about 1969.7157155285. The cubic root of 3879780 is about 157.1335901658.

The spelling of 3879780 in words is "three million, eight hundred seventy-nine thousand, seven hundred eighty".