3680551 has 16 divisors (see below), whose sum is σ = 4504896. Its totient is φ = 2935296.

The previous prime is 3680549. The next prime is 3680563. The reversal of 3680551 is 1550863.

It is not a de Polignac number, because 3680551 - 2¹ = 3680549 is a prime.

It is a Duffinian number.

3680551 is a Rhonda number in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18585 + ... + 18781.

It is an arithmetic number, because the mean of its divisors is an integer number (281556).

Almost surely, 2^3680551 is an apocalyptic number.

3680551 is a deficient number, since it is larger than the sum of its proper divisors (824345).

3680551 is a wasteful number, since it uses less digits than its factorization.

3680551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3680551 is about 1918.4762182524. The cubic root of 3680551 is about 154.3965576608.

It can be divided in two parts, 36805 and 51, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 3680551 in words is "three million, six hundred eighty thousand, five hundred fifty-one".