39699473 has 8 divisors (see below), whose sum is σ = 43369536. Its totient is φ = 36039600.

The previous prime is 39699467. The next prime is 39699479. The reversal of 39699473 is 37499693.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39699467) and next prime (39699479).

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 39699473 - 2²⁰ = 38650897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39699479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7268 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (5421192).

Almost surely, 2^39699473 is an apocalyptic number.

It is an amenable number.

39699473 is a deficient number, since it is larger than the sum of its proper divisors (3670063).

39699473 is a wasteful number, since it uses less digits than its factorization.

39699473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5095.

The product of its digits is 1102248, while the sum is 50.

The square root of 39699473 is about 6300.7517805417. The cubic root of 39699473 is about 341.1365454487.

The spelling of 39699473 in words is "thirty-nine million, six hundred ninety-nine thousand, four hundred seventy-three".