39924700097 has 4 divisors (see below), whose sum is σ = 39936961476. Its totient is φ = 39912438720.

The previous prime is 39924700091. The next prime is 39924700139. The reversal of 39924700097 is 79000742993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79000742993 = 17 ⋅4647102529.

It can be written as a sum of positive squares in 2 ways, for example, as 36658463296 + 3266236801 = 191464^2 + 57151^2 .

It is a cyclic number.

It is not a de Polignac number, because 39924700097 - 2¹² = 39924696001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39924700091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6125804 + ... + 6132317.

It is an arithmetic number, because the mean of its divisors is an integer number (9984240369).

Almost surely, 2^39924700097 is an apocalyptic number.

It is an amenable number.

39924700097 is a deficient number, since it is larger than the sum of its proper divisors (12261379).

39924700097 is a wasteful number, since it uses less digits than its factorization.

39924700097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12261378.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 39924700097 in words is "thirty-nine billion, nine hundred twenty-four million, seven hundred thousand, ninety-seven".