3948305 has 8 divisors (see below), whose sum is σ = 4753512. Its totient is φ = 3148288.

The previous prime is 3948293. The next prime is 3948311. The reversal of 3948305 is 5038493.

It can be written as a sum of positive squares in 4 ways, for example, as 693889 + 3254416 = 833^2 + 1804^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3948305 - 2⁴ = 3948289 is a prime.

It is a super-2 number, since 2×3948305² = 31178224746050, which contains 22 as substring.

It is a Duffinian number.

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, 647 + ... + 2883.

It is an arithmetic number, because the mean of its divisors is an integer number (594189).

Almost surely, 2^3948305 is an apocalyptic number.

It is an amenable number.

3948305 is a deficient number, since it is larger than the sum of its proper divisors (805207).

3948305 is a wasteful number, since it uses less digits than its factorization.

3948305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3948305 is about 1987.0342221512. The cubic root of 3948305 is about 158.0532987946.

The spelling of 3948305 in words is "three million, nine hundred forty-eight thousand, three hundred five".