39906675 has 36 divisors (see below), whose sum is σ = 74135880. Its totient is φ = 21280320.

The previous prime is 39906637. The next prime is 39906677. The reversal of 39906675 is 57660993.

It is not a de Polignac number, because 39906675 - 2¹³ = 39898483 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 39906675.

It is not an unprimeable number, because it can be changed into a prime (39906677) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2791 + ... + 9359.

It is an arithmetic number, because the mean of its divisors is an integer number (2059330).

Almost surely, 2^39906675 is an apocalyptic number.

39906675 is a deficient number, since it is larger than the sum of its proper divisors (34229205).

39906675 is an equidigital number, since it uses as much as digits as its factorization.

39906675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594 (or 6577 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 39906675 is about 6317.1730228006. The cubic root of 39906675 is about 341.7290097091.

The spelling of 39906675 in words is "thirty-nine million, nine hundred six thousand, six hundred seventy-five".