85702961 has 4 divisors (see below), whose sum is σ = 87320052. Its totient is φ = 84085872.

The previous prime is 85702927. The next prime is 85702963. The reversal of 85702961 is 16920758.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69822736 + 15880225 = 8356^2 + 3985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85702961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85702963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808466 + ... + 808571.

It is an arithmetic number, because the mean of its divisors is an integer number (21830013).

Almost surely, 2^85702961 is an apocalyptic number.

It is an amenable number.

85702961 is a deficient number, since it is larger than the sum of its proper divisors (1617091).

85702961 is a wasteful number, since it uses less digits than its factorization.

85702961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617090.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 85702961 is about 9257.5893730496. The cubic root of 85702961 is about 440.8917194816.

The spelling of 85702961 in words is "eighty-five million, seven hundred two thousand, nine hundred sixty-one".