85867477 has 2 divisors, whose sum is σ = 85867478. Its totient is φ = 85867476.

The previous prime is 85867469. The next prime is 85867499. The reversal of 85867477 is 77476858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74805201 + 11062276 = 8649^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 85867477 - 2³ = 85867469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85867277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42933738 + 42933739.

It is an arithmetic number, because the mean of its divisors is an integer number (42933739).

Almost surely, 2^85867477 is an apocalyptic number.

It is an amenable number.

85867477 is a deficient number, since it is larger than the sum of its proper divisors (1).

85867477 is an equidigital number, since it uses as much as digits as its factorization.

85867477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2634240, while the sum is 52.

The square root of 85867477 is about 9266.4705794601. The cubic root of 85867477 is about 441.1736520956.

The spelling of 85867477 in words is "eighty-five million, eight hundred sixty-seven thousand, four hundred seventy-seven".