3781930 has 8 divisors (see below), whose sum is σ = 6807492. Its totient is φ = 1512768.

The previous prime is 3781909. The next prime is 3781951. The reversal of 3781930 is 391873.

It is an interprime number because it is at equal distance from previous prime (3781909) and next prime (3781951).

It can be written as a sum of positive squares in 2 ways, for example, as 3143529 + 638401 = 1773^2 + 799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3781892 and 3781901.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189087 + ... + 189106.

Almost surely, 2^3781930 is an apocalyptic number.

3781930 is a deficient number, since it is larger than the sum of its proper divisors (3025562).

3781930 is a wasteful number, since it uses less digits than its factorization.

3781930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378200.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3781930 is about 1944.7184886250. The cubic root of 3781930 is about 155.8013304854.

The spelling of 3781930 in words is "three million, seven hundred eighty-one thousand, nine hundred thirty".