71085070 has 16 divisors (see below), whose sum is σ = 146232288. Its totient is φ = 24372000.

The previous prime is 71085013. The next prime is 71085089. The reversal of 71085070 is 7058017.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507681 + ... + 507820.

It is an arithmetic number, because the mean of its divisors is an integer number (9139518).

Almost surely, 2^71085070 is an apocalyptic number.

71085070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71085070 is an abundant number, since it is smaller than the sum of its proper divisors (75147218).

71085070 is a wasteful number, since it uses less digits than its factorization.

71085070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015515.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 71085070 is about 8431.1962377826. The cubic root of 71085070 is about 414.2470889192.

The spelling of 71085070 in words is "seventy-one million, eighty-five thousand, seventy".