71013774 has 32 divisors (see below), whose sum is σ = 155119104. Its totient is φ = 21540960.

The previous prime is 71013751. The next prime is 71013781. The reversal of 71013774 is 47731017.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (4847472).

Almost surely, 2^71013774 is an apocalyptic number.

71013774 is an abundant number, since it is smaller than the sum of its proper divisors (84105330).

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

71013774 is a wasteful number, since it uses less digits than its factorization.

71013774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 71013774 is about 8426.9670700674. The cubic root of 71013774 is about 414.1085504990.

The spelling of 71013774 in words is "seventy-one million, thirteen thousand, seven hundred seventy-four".