39952079 has 4 divisors (see below), whose sum is σ = 42054840. Its totient is φ = 37849320.

The previous prime is 39952051. The next prime is 39952103. The reversal of 39952079 is 97025993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39952079 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 (39952009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051352 + ... + 1051389.

It is an arithmetic number, because the mean of its divisors is an integer number (10513710).

Almost surely, 2^39952079 is an apocalyptic number.

39952079 is a deficient number, since it is larger than the sum of its proper divisors (2102761).

39952079 is a wasteful number, since it uses less digits than its factorization.

39952079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102760.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 39952079 is about 6320.7656972870. The cubic root of 39952079 is about 341.8585618308.

The spelling of 39952079 in words is "thirty-nine million, nine hundred fifty-two thousand, seventy-nine".