3738561 has 4 divisors (see below), whose sum is σ = 4984752. Its totient is φ = 2492372.

The previous prime is 3738551. The next prime is 3738563. The reversal of 3738561 is 1658373.

It is a happy number.

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: 1658373 = 3 ⋅552791.

It is a cyclic number.

It is not a de Polignac number, because 3738561 - 2⁵ = 3738529 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 7³ + 3¹³ + 8⁷ + 5 + 6⁶ + 1 .

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3738563) 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, 623091 + ... + 623096.

It is an arithmetic number, because the mean of its divisors is an integer number (1246188).

Almost surely, 2^3738561 is an apocalyptic number.

It is an amenable number.

3738561 is a deficient number, since it is larger than the sum of its proper divisors (1246191).

3738561 is a wasteful number, since it uses less digits than its factorization.

3738561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246190.

The product of its digits is 15120, while the sum is 33.

The square root of 3738561 is about 1933.5358801946. The cubic root of 3738561 is about 155.2034926987.

The spelling of 3738561 in words is "three million, seven hundred thirty-eight thousand, five hundred sixty-one".