3656060421 has 32 divisors (see below), whose sum is σ = 5479004160. Its totient is φ = 2153001984.

The previous prime is 3656060417. The next prime is 3656060453. The reversal of 3656060421 is 1240606563.

3656060421 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3656060421 - 2² = 3656060417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656060491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113500 + ... + 142106.

It is an arithmetic number, because the mean of its divisors is an integer number (171218880).

Almost surely, 2^3656060421 is an apocalyptic number.

It is an amenable number.

3656060421 is a deficient number, since it is larger than the sum of its proper divisors (1822943739).

3656060421 is a wasteful number, since it uses less digits than its factorization.

3656060421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28765.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 3656060421 is about 60465.3654665214. The cubic root of 3656060421 is about 1540.5334101221.

Adding to 3656060421 its reverse (1240606563), we get a palindrome (4896666984).

The spelling of 3656060421 in words is "three billion, six hundred fifty-six million, sixty thousand, four hundred twenty-one".