39502489 has 4 divisors (see below), whose sum is σ = 42541156. Its totient is φ = 36463824.

The previous prime is 39502487. The next prime is 39502499. The reversal of 39502489 is 98420593.

It is a happy number.

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 2778889 + 36723600 = 1667^2 + 6060^2 .

It is a cyclic number.

It is not a de Polignac number, because 39502489 - 2¹ = 39502487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39502481) 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, 1519314 + ... + 1519339.

It is an arithmetic number, because the mean of its divisors is an integer number (10635289).

Almost surely, 2^39502489 is an apocalyptic number.

It is an amenable number.

39502489 is a deficient number, since it is larger than the sum of its proper divisors (3038667).

39502489 is a wasteful number, since it uses less digits than its factorization.

39502489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038666.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 39502489 is about 6285.1005560770. The cubic root of 39502489 is about 340.5713835200.

The spelling of 39502489 in words is "thirty-nine million, five hundred two thousand, four hundred eighty-nine".