283631 has 2 divisors, whose sum is σ = 283632. Its totient is φ = 283630.

The previous prime is 283609. The next prime is 283637. The reversal of 283631 is 136382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 283631 - 2¹⁸ = 21487 is a prime.

It is a super-2 number, since 2×283631² = 160893088322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 283597 and 283606.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 283631.

It is not a weakly prime, because it can be changed into another prime (283637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141815 + 141816.

It is an arithmetic number, because the mean of its divisors is an integer number (141816).

2²⁸³⁶³¹ is an apocalyptic number.

283631 is a deficient number, since it is larger than the sum of its proper divisors (1).

283631 is an equidigital number, since it uses as much as digits as its factorization.

283631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 283631 is about 532.5701831684. The cubic root of 283631 is about 65.7029040059.

The spelling of 283631 in words is "two hundred eighty-three thousand, six hundred thirty-one".