3921130 has 8 divisors (see below), whose sum is σ = 7058052. Its totient is φ = 1568448.

The previous prime is 3921121. The next prime is 3921139. The reversal of 3921130 is 311293.

It is an interprime number because it is at equal distance from previous prime (3921121) and next prime (3921139).

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 130321 = 1947^2 + 361^2 .

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 = 3921098 and 3921107.

It is not an unprimeable number, because it can be changed into a prime (3921139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196047 + ... + 196066.

Almost surely, 2^3921130 is an apocalyptic number.

3921130 is a deficient number, since it is larger than the sum of its proper divisors (3136922).

3921130 is a wasteful number, since it uses less digits than its factorization.

3921130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392120.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 3921130 is about 1980.1843348537. The cubic root of 3921130 is about 157.6898525221.

The spelling of 3921130 in words is "three million, nine hundred twenty-one thousand, one hundred thirty".