3781401 has 8 divisors (see below), whose sum is σ = 5429760. Its totient is φ = 2326992.

The previous prime is 3781387. The next prime is 3781403. The reversal of 3781401 is 1041873.

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

It is not a de Polignac number, because 3781401 - 2¹⁰ = 3780377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3781403) 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, 48441 + ... + 48518.

It is an arithmetic number, because the mean of its divisors is an integer number (678720).

Almost surely, 2^3781401 is an apocalyptic number.

It is an amenable number.

3781401 is a deficient number, since it is larger than the sum of its proper divisors (1648359).

3781401 is a wasteful number, since it uses less digits than its factorization.

3781401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96975.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 3781401 is about 1944.5824744659. The cubic root of 3781401 is about 155.7940658748.

The spelling of 3781401 in words is "three million, seven hundred eighty-one thousand, four hundred one".