39734423 has 4 divisors (see below), whose sum is σ = 42071760. Its totient is φ = 37397088.

The previous prime is 39734407. The next prime is 39734447. The reversal of 39734423 is 32443793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32443793 = 89 ⋅364537.

It is a cyclic number.

It is not a de Polignac number, because 39734423 - 2⁴ = 39734407 is a prime.

It is a super-2 number, since 2×39734423² = 3157648742285858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39734473) 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, 1168643 + ... + 1168676.

It is an arithmetic number, because the mean of its divisors is an integer number (10517940).

Almost surely, 2^39734423 is an apocalyptic number.

39734423 is a deficient number, since it is larger than the sum of its proper divisors (2337337).

39734423 is a wasteful number, since it uses less digits than its factorization.

39734423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337336.

The product of its digits is 54432, while the sum is 35.

The square root of 39734423 is about 6303.5246489563. The cubic root of 39734423 is about 341.2366242348.

The spelling of 39734423 in words is "thirty-nine million, seven hundred thirty-four thousand, four hundred twenty-three".