39959485 has 4 divisors (see below), whose sum is σ = 47951388. Its totient is φ = 31967584.

The previous prime is 39959473. The next prime is 39959497. The reversal of 39959485 is 58495993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58495993 = 83 ⋅704771.

It is an interprime number because it is at equal distance from previous prime (39959473) and next prime (39959497).

It can be written as a sum of positive squares in 2 ways, for example, as 29789764 + 10169721 = 5458^2 + 3189^2 .

It is a cyclic number.

It is not a de Polignac number, because 39959485 - 2⁷ = 39959357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3995944 + ... + 3995953.

It is an arithmetic number, because the mean of its divisors is an integer number (11987847).

Almost surely, 2^39959485 is an apocalyptic number.

It is an amenable number.

39959485 is a deficient number, since it is larger than the sum of its proper divisors (7991903).

39959485 is an equidigital number, since it uses as much as digits as its factorization.

39959485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991902.

The product of its digits is 1749600, while the sum is 52.

The square root of 39959485 is about 6321.3515168831. The cubic root of 39959485 is about 341.8796842033.

The spelling of 39959485 in words is "thirty-nine million, nine hundred fifty-nine thousand, four hundred eighty-five".