39980087 has 8 divisors (see below), whose sum is σ = 45758976. Its totient is φ = 34218072.

The previous prime is 39980081. The next prime is 39980093. The reversal of 39980087 is 78008993.

It is an interprime number because it is at equal distance from previous prime (39980081) and next prime (39980093).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39980087 - 2⁶ = 39980023 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 (39980081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358 + ... + 9044.

It is an arithmetic number, because the mean of its divisors is an integer number (5719872).

Almost surely, 2^39980087 is an apocalyptic number.

39980087 is a deficient number, since it is larger than the sum of its proper divisors (5778889).

39980087 is an equidigital number, since it uses as much as digits as its factorization.

39980087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 39980087 is about 6322.9808634852. The cubic root of 39980087 is about 341.9384286636.

The spelling of 39980087 in words is "thirty-nine million, nine hundred eighty thousand, eighty-seven".