85121702 has 4 divisors (see below), whose sum is σ = 127682556. Its totient is φ = 42560850.

The previous prime is 85121683. The next prime is 85121761. The reversal of 85121702 is 20712158.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21280424 + ... + 21280427.

It is an arithmetic number, because the mean of its divisors is an integer number (31920639).

Almost surely, 2^85121702 is an apocalyptic number.

85121702 is a deficient number, since it is larger than the sum of its proper divisors (42560854).

85121702 is a wasteful number, since it uses less digits than its factorization.

85121702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42560853.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 85121702 is about 9226.1423140986. The cubic root of 85121702 is about 439.8927114444.

The spelling of 85121702 in words is "eighty-five million, one hundred twenty-one thousand, seven hundred two".