39421473 has 32 divisors (see below), whose sum is σ = 65108736. Its totient is φ = 20659968.

The previous prime is 39421451. The next prime is 39421477. The reversal of 39421473 is 37412493.

It is not a de Polignac number, because 39421473 - 2⁹ = 39420961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39421477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53415 + ... + 54147.

It is an arithmetic number, because the mean of its divisors is an integer number (2034648).

Almost surely, 2^39421473 is an apocalyptic number.

It is an amenable number.

39421473 is a deficient number, since it is larger than the sum of its proper divisors (25687263).

39421473 is a wasteful number, since it uses less digits than its factorization.

39421473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 18144, while the sum is 33.

The square root of 39421473 is about 6278.6521642786. The cubic root of 39421473 is about 340.3383972270.

The spelling of 39421473 in words is "thirty-nine million, four hundred twenty-one thousand, four hundred seventy-three".