3919628 has 6 divisors (see below), whose sum is σ = 6859356. Its totient is φ = 1959812.

The previous prime is 3919627. The next prime is 3919667. The reversal of 3919628 is 8269193.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3919591 and 3919600.

It is not an unprimeable number, because it can be changed into a prime (3919621) 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 as a sum of consecutive naturals, namely, 489950 + ... + 489957.

It is an arithmetic number, because the mean of its divisors is an integer number (1143226).

Almost surely, 2^3919628 is an apocalyptic number.

It is an amenable number.

3919628 is a deficient number, since it is larger than the sum of its proper divisors (2939728).

3919628 is a wasteful number, since it uses less digits than its factorization.

3919628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979911 (or 979909 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 3919628 is about 1979.8050409068. The cubic root of 3919628 is about 157.6697154351.

The spelling of 3919628 in words is "three million, nine hundred nineteen thousand, six hundred twenty-eight".