85963477 has 2 divisors, whose sum is σ = 85963478. Its totient is φ = 85963476.

The previous prime is 85963433. The next prime is 85963487. The reversal of 85963477 is 77436958.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 5574321 = 8966^2 + 2361^2 .

It is a cyclic number.

It is not a de Polignac number, because 85963477 - 2²³ = 77574869 is a prime.

It is equal to p_4996489 and since 85963477 and 4996489 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85963477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85963487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42981738 + 42981739.

It is an arithmetic number, because the mean of its divisors is an integer number (42981739).

Almost surely, 2^85963477 is an apocalyptic number.

It is an amenable number.

85963477 is a deficient number, since it is larger than the sum of its proper divisors (1).

85963477 is an equidigital number, since it uses as much as digits as its factorization.

85963477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 85963477 is about 9271.6490981918. The cubic root of 85963477 is about 441.3380018527.

The spelling of 85963477 in words is "eighty-five million, nine hundred sixty-three thousand, four hundred seventy-seven".