3791628 has 18 divisors (see below), whose sum is σ = 9584484. Its totient is φ = 1263864.

The previous prime is 3791569. The next prime is 3791647. The reversal of 3791628 is 8261973.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 105323 = 3791628 / (3 + 7 + 9 + 1 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 3791592 and 3791601.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52626 + ... + 52697.

Almost surely, 2^3791628 is an apocalyptic number.

It is an amenable number.

3791628 is an abundant number, since it is smaller than the sum of its proper divisors (5792856).

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

3791628 is a wasteful number, since it uses less digits than its factorization.

3791628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105333 (or 105328 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3791628 is about 1947.2103122159. The cubic root of 3791628 is about 155.9343905562.

The spelling of 3791628 in words is "three million, seven hundred ninety-one thousand, six hundred twenty-eight".