85970501 has 2 divisors, whose sum is σ = 85970502. Its totient is φ = 85970500.

The previous prime is 85970483. The next prime is 85970509. The reversal of 85970501 is 10507958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81450625 + 4519876 = 9025^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 85970501 - 2²⁶ = 18861637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85970509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42985250 + 42985251.

It is an arithmetic number, because the mean of its divisors is an integer number (42985251).

Almost surely, 2^85970501 is an apocalyptic number.

It is an amenable number.

85970501 is a deficient number, since it is larger than the sum of its proper divisors (1).

85970501 is an equidigital number, since it uses as much as digits as its factorization.

85970501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 85970501 is about 9272.0278795957. The cubic root of 85970501 is about 441.3500219718.

The spelling of 85970501 in words is "eighty-five million, nine hundred seventy thousand, five hundred one".