3680429 has 4 divisors (see below), whose sum is σ = 3758784. Its totient is φ = 3602076.

The previous prime is 3680407. The next prime is 3680431. The reversal of 3680429 is 9240863.

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 a cyclic number.

It is not a de Polignac number, because 3680429 - 2¹⁶ = 3614893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3680395 and 3680404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680459) 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, 39107 + ... + 39200.

It is an arithmetic number, because the mean of its divisors is an integer number (939696).

Almost surely, 2^3680429 is an apocalyptic number.

It is an amenable number.

3680429 is a deficient number, since it is larger than the sum of its proper divisors (78355).

3680429 is an equidigital number, since it uses as much as digits as its factorization.

3680429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78354.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3680429 is about 1918.4444219211. Note that the first 4 decimals coincide. The cubic root of 3680429 is about 154.3948517036.

The spelling of 3680429 in words is "three million, six hundred eighty thousand, four hundred twenty-nine".