71013390 has 32 divisors (see below), whose sum is σ = 194780160. Its totient is φ = 16231584.

The previous prime is 71013347. The next prime is 71013401. The reversal of 71013390 is 9331017.

It is a self number, because there is not a number n which added to its sum of digits gives 71013390.

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, 168870 + ... + 169289.

It is an arithmetic number, because the mean of its divisors is an integer number (6086880).

Almost surely, 2^71013390 is an apocalyptic number.

71013390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71013390 is an abundant number, since it is smaller than the sum of its proper divisors (123766770).

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

71013390 is a wasteful number, since it uses less digits than its factorization.

71013390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338176.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 71013390 is about 8426.9442860387. The cubic root of 71013390 is about 414.1078040806.

The spelling of 71013390 in words is "seventy-one million, thirteen thousand, three hundred ninety".