85650777 has 20 divisors (see below), whose sum is σ = 135475956. Its totient is φ = 53740800.

The previous prime is 85650769. The next prime is 85650821. The reversal of 85650777 is 77705658.

It can be written as a sum of positive squares in 2 ways, for example, as 34327881 + 51322896 = 5859^2 + 7164^2 .

It is not a de Polignac number, because 85650777 - 2³ = 85650769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85650707) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29724 + ... + 32477.

Almost surely, 2^85650777 is an apocalyptic number.

It is an amenable number.

85650777 is a deficient number, since it is larger than the sum of its proper divisors (49825179).

85650777 is a wasteful number, since it uses less digits than its factorization.

85650777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62230 (or 62221 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 85650777 is about 9254.7704995856. The cubic root of 85650777 is about 440.8022159044.

The spelling of 85650777 in words is "eighty-five million, six hundred fifty thousand, seven hundred seventy-seven".