39898959 has 4 divisors (see below), whose sum is σ = 53198616. Its totient is φ = 26599304.

The previous prime is 39898933. The next prime is 39898979. The reversal of 39898959 is 95989893.

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

It is a cyclic number.

It is not a de Polignac number, because 39898959 - 2¹⁵ = 39866191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39898919) 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, 6649824 + ... + 6649829.

It is an arithmetic number, because the mean of its divisors is an integer number (13299654).

Almost surely, 2^39898959 is an apocalyptic number.

39898959 is a deficient number, since it is larger than the sum of its proper divisors (13299657).

39898959 is a wasteful number, since it uses less digits than its factorization.

39898959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13299656.

The product of its digits is 6298560, while the sum is 60.

The square root of 39898959 is about 6316.5622770618. The cubic root of 39898959 is about 341.7069837280.

The spelling of 39898959 in words is "thirty-nine million, eight hundred ninety-eight thousand, nine hundred fifty-nine".