39922993 has 4 divisors (see below), whose sum is σ = 43552368. Its totient is φ = 36293620.

The previous prime is 39922991. The next prime is 39923003.

39922993 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39922993 - 2¹ = 39922991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39922991) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1814671 + ... + 1814692.

It is an arithmetic number, because the mean of its divisors is an integer number (10888092).

Almost surely, 2^39922993 is an apocalyptic number.

It is an amenable number.

39922993 is a deficient number, since it is larger than the sum of its proper divisors (3629375).

39922993 is a wasteful number, since it uses less digits than its factorization.

39922993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629374.

The product of its digits is 236196, while the sum is 46.

The square root of 39922993 is about 6318.4644495320. The cubic root of 39922993 is about 341.7755814843.

The spelling of 39922993 in words is "thirty-nine million, nine hundred twenty-two thousand, nine hundred ninety-three".