39445967 has 16 divisors (see below), whose sum is σ = 46220544. Its totient is φ = 33264000.

The previous prime is 39445963. The next prime is 39446009. The reversal of 39445967 is 76954493.

It is a happy number.

It is not a de Polignac number, because 39445967 - 2² = 39445963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39445961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11792 + ... + 14762.

It is an arithmetic number, because the mean of its divisors is an integer number (2888784).

Almost surely, 2^39445967 is an apocalyptic number.

39445967 is a deficient number, since it is larger than the sum of its proper divisors (6774577).

39445967 is a wasteful number, since it uses less digits than its factorization.

39445967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070.

The product of its digits is 816480, while the sum is 47.

The square root of 39445967 is about 6280.6024392569. The cubic root of 39445967 is about 340.4088708557.

The spelling of 39445967 in words is "thirty-nine million, four hundred forty-five thousand, nine hundred sixty-seven".