39952787 has 12 divisors (see below), whose sum is σ = 46596816. Its totient is φ = 34156080.

The previous prime is 39952777. The next prime is 39952789. The reversal of 39952787 is 78725993.

It is a happy number.

It is not a de Polignac number, because 39952787 - 2⁸ = 39952531 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (39952789) 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 11 ways as a sum of consecutive naturals, for example, 23837 + ... + 25457.

It is an arithmetic number, because the mean of its divisors is an integer number (3883068).

Almost surely, 2^39952787 is an apocalyptic number.

39952787 is a deficient number, since it is larger than the sum of its proper divisors (6644029).

39952787 is a wasteful number, since it uses less digits than its factorization.

39952787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 2131 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 39952787 is about 6320.8217029117. The cubic root of 39952787 is about 341.8605812037.

The spelling of 39952787 in words is "thirty-nine million, nine hundred fifty-two thousand, seven hundred eighty-seven".