3735561 has 4 divisors (see below), whose sum is σ = 4980752. Its totient is φ = 2490372.

The previous prime is 3735553. The next prime is 3735569. The reversal of 3735561 is 1655373.

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.

It is an interprime number because it is at equal distance from previous prime (3735553) and next prime (3735569).

It is not a de Polignac number, because 3735561 - 2³ = 3735553 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3735569) 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, 622591 + ... + 622596.

It is an arithmetic number, because the mean of its divisors is an integer number (1245188).

Almost surely, 2^3735561 is an apocalyptic number.

It is an amenable number.

3735561 is a deficient number, since it is larger than the sum of its proper divisors (1245191).

3735561 is a wasteful number, since it uses less digits than its factorization.

3735561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245190.

The product of its digits is 9450, while the sum is 30.

The square root of 3735561 is about 1932.7599437074. The cubic root of 3735561 is about 155.1619673563.

The spelling of 3735561 in words is "three million, seven hundred thirty-five thousand, five hundred sixty-one".