39423497 has 4 divisors (see below), whose sum is σ = 39643920. Its totient is φ = 39203076.

The previous prime is 39423487. The next prime is 39423511. The reversal of 39423497 is 79432493.

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 a cyclic number.

It is not a de Polignac number, because 39423497 - 2¹⁴ = 39407113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39423487) 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, 109943 + ... + 110300.

It is an arithmetic number, because the mean of its divisors is an integer number (9910980).

Almost surely, 2^39423497 is an apocalyptic number.

It is an amenable number.

39423497 is a deficient number, since it is larger than the sum of its proper divisors (220423).

39423497 is a wasteful number, since it uses less digits than its factorization.

39423497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220422.

The product of its digits is 163296, while the sum is 41.

The square root of 39423497 is about 6278.8133432998. The cubic root of 39423497 is about 340.3442217440.

The spelling of 39423497 in words is "thirty-nine million, four hundred twenty-three thousand, four hundred ninety-seven".