3469639 has 2 divisors, whose sum is σ = 3469640. Its totient is φ = 3469638.

The previous prime is 3469633. The next prime is 3469663. The reversal of 3469639 is 9369643.

It is a weak prime.

It is an emirp because it is prime and its reverse (9369643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3469639 - 2⁵ = 3469607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3469633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1734819 + 1734820.

It is an arithmetic number, because the mean of its divisors is an integer number (1734820).

Almost surely, 2^3469639 is an apocalyptic number.

3469639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3469639 is an equidigital number, since it uses as much as digits as its factorization.

3469639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 40.

The square root of 3469639 is about 1862.6967010225. The cubic root of 3469639 is about 151.3891545426.

The spelling of 3469639 in words is "three million, four hundred sixty-nine thousand, six hundred thirty-nine".