71000387 has 8 divisors (see below), whose sum is σ = 71746752. Its totient is φ = 70257600.

The previous prime is 71000383. The next prime is 71000399. The reversal of 71000387 is 78300017.

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 71000387 - 2² = 71000383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71000383) 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, 57062 + ... + 58292.

It is an arithmetic number, because the mean of its divisors is an integer number (8968344).

Almost surely, 2^71000387 is an apocalyptic number.

71000387 is a deficient number, since it is larger than the sum of its proper divisors (746365).

71000387 is a wasteful number, since it uses less digits than its factorization.

71000387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 71000387 is about 8426.1727373702. The cubic root of 71000387 is about 414.0825272867.

The spelling of 71000387 in words is "seventy-one million, three hundred eighty-seven", and thus it is an aban number.