39676987 has 16 divisors (see below), whose sum is σ = 46816000. Its totient is φ = 32915808.

The previous prime is 39676951. The next prime is 39676999. The reversal of 39676987 is 78967693.

It is a cyclic number.

It is not a de Polignac number, because 39676987 - 2¹⁹ = 39152699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39676927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79264 + ... + 79762.

It is an arithmetic number, because the mean of its divisors is an integer number (2926000).

Almost surely, 2^39676987 is an apocalyptic number.

39676987 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

39676987 is a deficient number, since it is larger than the sum of its proper divisors (7139013).

39676987 is a wasteful number, since it uses less digits than its factorization.

39676987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its digits is 3429216, while the sum is 55.

The square root of 39676987 is about 6298.9671375552. The cubic root of 39676987 is about 341.0721260791.

The spelling of 39676987 in words is "thirty-nine million, six hundred seventy-six thousand, nine hundred eighty-seven".