39986950 has 12 divisors (see below), whose sum is σ = 74375820. Its totient is φ = 15994760.

The previous prime is 39986939. The next prime is 39986951. The reversal of 39986950 is 5968993.

It is a junction number, because it is equal to n+sod(n) for n = 39986894 and 39986903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39986951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399820 + ... + 399919.

It is an arithmetic number, because the mean of its divisors is an integer number (6197985).

Almost surely, 2^39986950 is an apocalyptic number.

39986950 is a deficient number, since it is larger than the sum of its proper divisors (34388870).

39986950 is a wasteful number, since it uses less digits than its factorization.

39986950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799751 (or 799746 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 39986950 is about 6323.5235430889. The cubic root of 39986950 is about 341.9579933131.

The spelling of 39986950 in words is "thirty-nine million, nine hundred eighty-six thousand, nine hundred fifty".