39930705 has 64 divisors (see below), whose sum is σ = 76308480. Its totient is φ = 19740672.

The previous prime is 39930689. The next prime is 39930721. The reversal of 39930705 is 50703993.

It is an interprime number because it is at equal distance from previous prime (39930689) and next prime (39930721).

It is not a de Polignac number, because 39930705 - 2⁴ = 39930689 is a prime.

It is a super-2 number, since 2×39930705² = 3188922403594050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39930705.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 291397 + ... + 291533.

It is an arithmetic number, because the mean of its divisors is an integer number (1192320).

Almost surely, 2^39930705 is an apocalyptic number.

It is an amenable number.

39930705 is a deficient number, since it is larger than the sum of its proper divisors (36377775).

39930705 is a wasteful number, since it uses less digits than its factorization.

39930705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 39930705 is about 6319.0746949217. The cubic root of 39930705 is about 341.7975872123.

The spelling of 39930705 in words is "thirty-nine million, nine hundred thirty thousand, seven hundred five".