3778801 has 4 divisors (see below), whose sum is σ = 4069492. Its totient is φ = 3488112.

The previous prime is 3778793. The next prime is 3778823. The reversal of 3778801 is 1088773.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1088773 = 7 ⋅155539.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 2178576 = 1265^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 3778801 - 2³ = 3778793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3778861) 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, 145326 + ... + 145351.

It is an arithmetic number, because the mean of its divisors is an integer number (1017373).

Almost surely, 2^3778801 is an apocalyptic number.

It is an amenable number.

3778801 is a deficient number, since it is larger than the sum of its proper divisors (290691).

3778801 is a wasteful number, since it uses less digits than its factorization.

3778801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290690.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 3778801 is about 1943.9138355390. The cubic root of 3778801 is about 155.7583509423.

The spelling of 3778801 in words is "three million, seven hundred seventy-eight thousand, eight hundred one".