71702085 has 32 divisors (see below), whose sum is σ = 141200640. Its totient is φ = 30256128.

The previous prime is 71702069. The next prime is 71702089. The reversal of 71702085 is 58020717.

It is a happy number.

It is not a de Polignac number, because 71702085 - 2⁴ = 71702069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71702089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24900 + ... + 27629.

It is an arithmetic number, because the mean of its divisors is an integer number (4412520).

Almost surely, 2^71702085 is an apocalyptic number.

It is an amenable number.

71702085 is a deficient number, since it is larger than the sum of its proper divisors (69498555).

71702085 is a wasteful number, since it uses less digits than its factorization.

71702085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52557.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 71702085 is about 8467.7083676754. The cubic root of 71702085 is about 415.4421860561.

The spelling of 71702085 in words is "seventy-one million, seven hundred two thousand, eighty-five".