3921401 has 8 divisors (see below), whose sum is σ = 4339008. Its totient is φ = 3514000.

The previous prime is 3921383. The next prime is 3921413. The reversal of 3921401 is 1041293.

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 3921401 - 2¹⁰ = 3920377 is a prime.

It is a pancake number, because a pancake can be divided into 3921401 parts by 2800 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3921451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 3291.

It is an arithmetic number, because the mean of its divisors is an integer number (542376).

Almost surely, 2^3921401 is an apocalyptic number.

It is an amenable number.

3921401 is a deficient number, since it is larger than the sum of its proper divisors (417607).

3921401 is a wasteful number, since it uses less digits than its factorization.

3921401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3921401 is about 1980.2527616443. The cubic root of 3921401 is about 157.6934852305.

Adding to 3921401 its reverse (1041293), we get a palindrome (4962694).

The spelling of 3921401 in words is "three million, nine hundred twenty-one thousand, four hundred one".