82663631 has 2 divisors, whose sum is σ = 82663632. Its totient is φ = 82663630.

The previous prime is 82663627. The next prime is 82663697. The reversal of 82663631 is 13636628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82663631 - 2² = 82663627 is a prime.

It is a super-2 number, since 2×82663631² = 13666551780208322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82663591 and 82663600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82623631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41331815 + 41331816.

It is an arithmetic number, because the mean of its divisors is an integer number (41331816).

Almost surely, 2^82663631 is an apocalyptic number.

82663631 is a deficient number, since it is larger than the sum of its proper divisors (1).

82663631 is an equidigital number, since it uses as much as digits as its factorization.

82663631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 82663631 is about 9091.9541903817. The cubic root of 82663631 is about 435.6170061322.

The spelling of 82663631 in words is "eighty-two million, six hundred sixty-three thousand, six hundred thirty-one".