39469 has 4 divisors (see below), whose sum is σ = 40860. Its totient is φ = 38080.

The previous prime is 39461. The next prime is 39499. The reversal of 39469 is 96493.

39469 = T₃₇ + T₃₈ + ... + T₆₅.

39469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13225 + 26244 = 115^2 + 162^2 .

It is a cyclic number.

It is not a de Polignac number, because 39469 - 2³ = 39461 is a prime.

It is a super-2 number, since 2×39469² = 3115603922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 9⁴ + 4⁷ + 6⁵ + 9⁴ .

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 39469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39461) 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, 652 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (10215).

2³⁹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

39469 is a deficient number, since it is larger than the sum of its proper divisors (1391).

39469 is a wasteful number, since it uses less digits than its factorization.

39469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390.

The product of its digits is 5832, while the sum is 31.

The square root of 39469 is about 198.6680648720. The cubic root of 39469 is about 34.0475114315.

The spelling of 39469 in words is "thirty-nine thousand, four hundred sixty-nine".