39496421 has 4 divisors (see below), whose sum is σ = 41575200. Its totient is φ = 37417644.

The previous prime is 39496417. The next prime is 39496439. The reversal of 39496421 is 12469493.

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 39496421 - 2² = 39496417 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 (39496441) 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, 1039361 + ... + 1039398.

It is an arithmetic number, because the mean of its divisors is an integer number (10393800).

Almost surely, 2^39496421 is an apocalyptic number.

It is an amenable number.

39496421 is a deficient number, since it is larger than the sum of its proper divisors (2078779).

39496421 is a wasteful number, since it uses less digits than its factorization.

39496421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078778.

The product of its digits is 46656, while the sum is 38.

The square root of 39496421 is about 6284.6178085863. The cubic root of 39496421 is about 340.5539441718.

The spelling of 39496421 in words is "thirty-nine million, four hundred ninety-six thousand, four hundred twenty-one".