39093987 has 4 divisors (see below), whose sum is σ = 52125320. Its totient is φ = 26062656.

The previous prime is 39093983. The next prime is 39093991. The reversal of 39093987 is 78939093.

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

It is an interprime number because it is at equal distance from previous prime (39093983) and next prime (39093991).

It is not a de Polignac number, because 39093987 - 2² = 39093983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39093983) 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, 6515662 + ... + 6515667.

It is an arithmetic number, because the mean of its divisors is an integer number (13031330).

Almost surely, 2^39093987 is an apocalyptic number.

39093987 is a deficient number, since it is larger than the sum of its proper divisors (13031333).

39093987 is a wasteful number, since it uses less digits than its factorization.

39093987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13031332.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 39093987 is about 6252.5184525917. The cubic root of 39093987 is about 339.3933443818.

The spelling of 39093987 in words is "thirty-nine million, ninety-three thousand, nine hundred eighty-seven".