3646507 has 2 divisors, whose sum is σ = 3646508. Its totient is φ = 3646506.

The previous prime is 3646493. The next prime is 3646523. The reversal of 3646507 is 7056463.

It is a weak prime.

It is an emirp because it is prime and its reverse (7056463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3646507 - 2¹⁵ = 3613739 is a prime.

3646507 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3646567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823253 + 1823254.

It is an arithmetic number, because the mean of its divisors is an integer number (1823254).

Almost surely, 2^3646507 is an apocalyptic number.

3646507 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646507 is an equidigital number, since it uses as much as digits as its factorization.

3646507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3646507 is about 1909.5829387591. The cubic root of 3646507 is about 153.9190416099.

The spelling of 3646507 in words is "three million, six hundred forty-six thousand, five hundred seven".