39707473 has 12 divisors (see below), whose sum is σ = 45136308. Its totient is φ = 34719840.

The previous prime is 39707471. The next prime is 39707489. The reversal of 39707473 is 37470793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19430464 + 20277009 = 4408^2 + 4503^2 .

It is not a de Polignac number, because 39707473 - 2¹ = 39707471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39707471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463 + ... + 8923.

It is an arithmetic number, because the mean of its divisors is an integer number (3761359).

Almost surely, 2^39707473 is an apocalyptic number.

It is an amenable number.

39707473 is a deficient number, since it is larger than the sum of its proper divisors (5428835).

39707473 is a wasteful number, since it uses less digits than its factorization.

39707473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512 (or 8493 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 40.

The square root of 39707473 is about 6301.3865934412. The cubic root of 39707473 is about 341.1594585074.

The spelling of 39707473 in words is "thirty-nine million, seven hundred seven thousand, four hundred seventy-three".