71001894 has 32 divisors (see below), whose sum is σ = 151484256. Its totient is φ = 22108160.

The previous prime is 71001893. The next prime is 71001929. The reversal of 71001894 is 49810017.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71001893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11434 + ... + 16514.

It is an arithmetic number, because the mean of its divisors is an integer number (4733883).

Almost surely, 2^71001894 is an apocalyptic number.

71001894 is an abundant number, since it is smaller than the sum of its proper divisors (80482362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71001894 is a wasteful number, since it uses less digits than its factorization.

71001894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 71001894 is about 8426.2621606499. The cubic root of 71001894 is about 414.0854569325.

The spelling of 71001894 in words is "seventy-one million, one thousand, eight hundred ninety-four".