3780013 has 8 divisors (see below), whose sum is σ = 3908088. Its totient is φ = 3654144.

The previous prime is 3779929. The next prime is 3780017. The reversal of 3780013 is 3100873.

It can be written as a sum of positive squares in 4 ways, for example, as 1965604 + 1814409 = 1402^2 + 1347^2 .

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 3780013 - 2¹³ = 3771821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780017) 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, 3381 + ... + 4357.

It is an arithmetic number, because the mean of its divisors is an integer number (488511).

Almost surely, 2^3780013 is an apocalyptic number.

It is an amenable number.

3780013 is a deficient number, since it is larger than the sum of its proper divisors (128075).

3780013 is an equidigital number, since it uses as much as digits as its factorization.

3780013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 3780013 is about 1944.2255527587. The cubic root of 3780013 is about 155.7750016332.

Adding to 3780013 its reverse (3100873), we get a palindrome (6880886).

The spelling of 3780013 in words is "three million, seven hundred eighty thousand, thirteen".