39780675 has 36 divisors (see below), whose sum is σ = 77733864. Its totient is φ = 19286400.

The previous prime is 39780673. The next prime is 39780679. The reversal of 39780675 is 57608793.

It is a happy number.

It is not a de Polignac number, because 39780675 - 2¹ = 39780673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 39780675.

It is not an unprimeable number, because it can be changed into a prime (39780673) 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 35 ways as a sum of consecutive naturals, for example, 5562 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (2159274).

Almost surely, 2^39780675 is an apocalyptic number.

39780675 is a deficient number, since it is larger than the sum of its proper divisors (37953189).

39780675 is a wasteful number, since it uses less digits than its factorization.

39780675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16100 (or 16092 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 39780675 is about 6307.1923230547. The cubic root of 39780675 is about 341.3689759440.

The spelling of 39780675 in words is "thirty-nine million, seven hundred eighty thousand, six hundred seventy-five".