39457213 has 8 divisors (see below), whose sum is σ = 41560128. Its totient is φ = 37386624.

The previous prime is 39457199. The next prime is 39457217. The reversal of 39457213 is 31275493.

39457213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39457213 - 2⁵ = 39457181 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 (39457217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5556 + ... + 10477.

It is an arithmetic number, because the mean of its divisors is an integer number (5195016).

Almost surely, 2^39457213 is an apocalyptic number.

It is an amenable number.

39457213 is a deficient number, since it is larger than the sum of its proper divisors (2102915).

39457213 is a wasteful number, since it uses less digits than its factorization.

39457213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163.

The product of its digits is 22680, while the sum is 34.

The square root of 39457213 is about 6281.4976717340. The cubic root of 39457213 is about 340.4412178416.

The spelling of 39457213 in words is "thirty-nine million, four hundred fifty-seven thousand, two hundred thirteen".