3702561 has 4 divisors (see below), whose sum is σ = 4936752. Its totient is φ = 2468372.

The previous prime is 3702551. The next prime is 3702571. The reversal of 3702561 is 1652073.

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: 1652073 = 3 ⋅550691.

It is an interprime number because it is at equal distance from previous prime (3702551) and next prime (3702571).

It is a cyclic number.

It is not a de Polignac number, because 3702561 - 2⁵ = 3702529 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3702551) 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, 617091 + ... + 617096.

It is an arithmetic number, because the mean of its divisors is an integer number (1234188).

Almost surely, 2^3702561 is an apocalyptic number.

It is an amenable number.

3702561 is a deficient number, since it is larger than the sum of its proper divisors (1234191).

3702561 is a wasteful number, since it uses less digits than its factorization.

3702561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234190.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 3702561 is about 1924.2039912650. The cubic root of 3702561 is about 154.7037142681.

The spelling of 3702561 in words is "three million, seven hundred two thousand, five hundred sixty-one".