3654689 has 2 divisors, whose sum is σ = 3654690. Its totient is φ = 3654688.

The previous prime is 3654671. The next prime is 3654709. The reversal of 3654689 is 9864563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 1380625 = 1508^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 3654689 - 2¹² = 3650593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3654089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827344 + 1827345.

It is an arithmetic number, because the mean of its divisors is an integer number (1827345).

Almost surely, 2^3654689 is an apocalyptic number.

It is an amenable number.

3654689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3654689 is an equidigital number, since it uses as much as digits as its factorization.

3654689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 3654689 is about 1911.7240909713. The cubic root of 3654689 is about 154.0340763407.

The spelling of 3654689 in words is "three million, six hundred fifty-four thousand, six hundred eighty-nine".