38947973 has 8 divisors (see below), whose sum is σ = 39620736. Its totient is φ = 38278800.

The previous prime is 38947963. The next prime is 38948011. The reversal of 38947973 is 37974983.

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 38947973 - 2²⁰ = 37899397 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 (38947903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29240 + ... + 30542.

It is an arithmetic number, because the mean of its divisors is an integer number (4952592).

Almost surely, 2^38947973 is an apocalyptic number.

It is an amenable number.

38947973 is a deficient number, since it is larger than the sum of its proper divisors (672763).

38947973 is a wasteful number, since it uses less digits than its factorization.

38947973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795.

The product of its digits is 1143072, while the sum is 50.

The square root of 38947973 is about 6240.8311145231. The cubic root of 38947973 is about 338.9702784279.

The spelling of 38947973 in words is "thirty-eight million, nine hundred forty-seven thousand, nine hundred seventy-three".