3625651 has 4 divisors (see below), whose sum is σ = 3783312. Its totient is φ = 3467992.

The previous prime is 3625649. The next prime is 3625669. The reversal of 3625651 is 1565263.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3625651 - 2¹ = 3625649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3625621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78796 + ... + 78841.

It is an arithmetic number, because the mean of its divisors is an integer number (945828).

Almost surely, 2^3625651 is an apocalyptic number.

3625651 is a deficient number, since it is larger than the sum of its proper divisors (157661).

3625651 is a wasteful number, since it uses less digits than its factorization.

3625651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157660.

The product of its digits is 5400, while the sum is 28.

The square root of 3625651 is about 1904.1142297667. The cubic root of 3625651 is about 153.6250364960.

It can be divided in two parts, 3 and 625651, that multiplied together give a triangular number (1876953 = T₁₉₃₇).

The spelling of 3625651 in words is "three million, six hundred twenty-five thousand, six hundred fifty-one".