39421373 has 4 divisors (see below), whose sum is σ = 39705120. Its totient is φ = 39137628.

The previous prime is 39421363. The next prime is 39421397. The reversal of 39421373 is 37312493.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37312493 = 163 ⋅228911.

It is a cyclic number.

It is not a de Polignac number, because 39421373 - 2⁴ = 39421357 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 (39421363) 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, 141665 + ... + 141942.

It is an arithmetic number, because the mean of its divisors is an integer number (9926280).

Almost surely, 2^39421373 is an apocalyptic number.

It is an amenable number.

39421373 is a deficient number, since it is larger than the sum of its proper divisors (283747).

39421373 is a wasteful number, since it uses less digits than its factorization.

39421373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283746.

The product of its digits is 13608, while the sum is 32.

The square root of 39421373 is about 6278.6442007809. The cubic root of 39421373 is about 340.3381094492.

The spelling of 39421373 in words is "thirty-nine million, four hundred twenty-one thousand, three hundred seventy-three".