3656904754 has 4 divisors (see below), whose sum is σ = 5485357134. Its totient is φ = 1828452376.

The previous prime is 3656904751. The next prime is 3656904761. The reversal of 3656904754 is 4574096563.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 3050021529 + 606883225 = 55227^2 + 24635^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3656904698 and 3656904707.

It is not an unprimeable number, because it can be changed into a prime (3656904751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914226187 + ... + 914226190.

Almost surely, 2^3656904754 is an apocalyptic number.

3656904754 is a deficient number, since it is larger than the sum of its proper divisors (1828452380).

3656904754 is a wasteful number, since it uses less digits than its factorization.

3656904754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828452379.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The square root of 3656904754 is about 60472.3470191128. The cubic root of 3656904754 is about 1540.6519915940.

The spelling of 3656904754 in words is "three billion, six hundred fifty-six million, nine hundred four thousand, seven hundred fifty-four".