3770561 has 4 divisors (see below), whose sum is σ = 3892224. Its totient is φ = 3648900.

The previous prime is 3770539. The next prime is 3770567. The reversal of 3770561 is 1650773.

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: 1650773 = 239 ⋅6907.

It is a cyclic number.

It is not a de Polignac number, because 3770561 - 2⁶ = 3770497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3770567) 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, 60785 + ... + 60846.

It is an arithmetic number, because the mean of its divisors is an integer number (973056).

Almost surely, 2^3770561 is an apocalyptic number.

3770561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3770561 is a deficient number, since it is larger than the sum of its proper divisors (121663).

3770561 is a wasteful number, since it uses less digits than its factorization.

3770561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121662.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 3770561 is about 1941.7932433707. The cubic root of 3770561 is about 155.6450537321.

The spelling of 3770561 in words is "three million, seven hundred seventy thousand, five hundred sixty-one".