285212677 has 2 divisors, whose sum is σ = 285212678. Its totient is φ = 285212676.

The previous prime is 285212659. The next prime is 285212699. The reversal of 285212677 is 776212582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170851041 + 114361636 = 13071^2 + 10694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285212677 is a prime.

It is a super-2 number, since 2×285212677² = 162692542243012658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285212657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142606338 + 142606339.

It is an arithmetic number, because the mean of its divisors is an integer number (142606339).

Almost surely, 2^285212677 is an apocalyptic number.

It is an amenable number.

285212677 is a deficient number, since it is larger than the sum of its proper divisors (1).

285212677 is an equidigital number, since it uses as much as digits as its factorization.

285212677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 285212677 is about 16888.2407905619. The cubic root of 285212677 is about 658.2480910550.

The spelling of 285212677 in words is "two hundred eighty-five million, two hundred twelve thousand, six hundred seventy-seven".