3963901 has 4 divisors (see below), whose sum is σ = 3990304. Its totient is φ = 3937500.

The previous prime is 3963899. The next prime is 3963931. The reversal of 3963901 is 1093693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1093693 = 151 ⋅7243.

It is a cyclic number.

It is not a de Polignac number, because 3963901 - 2¹ = 3963899 is a prime.

It is a super-4 number, since 4×3963901⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3963931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12975 + ... + 13276.

It is an arithmetic number, because the mean of its divisors is an integer number (997576).

Almost surely, 2^3963901 is an apocalyptic number.

It is an amenable number.

3963901 is a deficient number, since it is larger than the sum of its proper divisors (26403).

3963901 is a wasteful number, since it uses less digits than its factorization.

3963901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26402.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3963901 is about 1990.9547960715. The cubic root of 3963901 is about 158.2611315000.

The spelling of 3963901 in words is "three million, nine hundred sixty-three thousand, nine hundred one".