3654657 has 6 divisors (see below), whose sum is σ = 5278962. Its totient is φ = 2436432.

The previous prime is 3654647. The next prime is 3654671. The reversal of 3654657 is 7564563.

It can be written as a sum of positive squares in only one way, i.e., 3101121 + 553536 = 1761^2 + 744^2 .

It is not a de Polignac number, because 3654657 - 2⁴ = 3654641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3654647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203028 + ... + 203045.

It is an arithmetic number, because the mean of its divisors is an integer number (879827).

Almost surely, 2^3654657 is an apocalyptic number.

It is an amenable number.

3654657 is a deficient number, since it is larger than the sum of its proper divisors (1624305).

3654657 is a wasteful number, since it uses less digits than its factorization.

3654657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406079 (or 406076 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 3654657 is about 1911.7157215444. The cubic root of 3654657 is about 154.0336267717.

The spelling of 3654657 in words is "three million, six hundred fifty-four thousand, six hundred fifty-seven".