413639 has 4 divisors (see below), whose sum is σ = 417024. Its totient is φ = 410256.

The previous prime is 413629. The next prime is 413653. The reversal of 413639 is 936314.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936314 = 2 ⋅468157.

It is a cyclic number.

It is not a de Polignac number, because 413639 - 2¹² = 409543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 1755.

It is an arithmetic number, because the mean of its divisors is an integer number (104256).

2⁴¹³⁶³⁹ is an apocalyptic number.

413639 is a deficient number, since it is larger than the sum of its proper divisors (3385).

413639 is a wasteful number, since it uses less digits than its factorization.

413639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its digits is 1944, while the sum is 26.

The square root of 413639 is about 643.1477279755. The cubic root of 413639 is about 74.5087298150.

The spelling of 413639 in words is "four hundred thirteen thousand, six hundred thirty-nine".