38172071 has 8 divisors (see below), whose sum is σ = 43664544. Its totient is φ = 32689440.

The previous prime is 38172047. The next prime is 38172077. The reversal of 38172071 is 17027183.

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

It is a de Polignac number, because none of the positive numbers 2^k-38172071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38172077) 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, 10241 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (5458068).

Almost surely, 2^38172071 is an apocalyptic number.

38172071 is a deficient number, since it is larger than the sum of its proper divisors (5492473).

38172071 is a wasteful number, since it uses less digits than its factorization.

38172071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 38172071 is about 6178.3550399763. The cubic root of 38172071 is about 336.7042314498.

The spelling of 38172071 in words is "thirty-eight million, one hundred seventy-two thousand, seventy-one".