82229631 has 32 divisors (see below), whose sum is σ = 123475968. Its totient is φ = 48246240.

The previous prime is 82229627. The next prime is 82229633. The reversal of 82229631 is 13692228.

It is a happy number.

It is not a de Polignac number, because 82229631 - 2² = 82229627 is a prime.

It is a super-2 number, since 2×82229631² = 13523424428792322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 82229592 and 82229601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82229633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236800 + ... + 237146.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624).

Almost surely, 2^82229631 is an apocalyptic number.

82229631 is a deficient number, since it is larger than the sum of its proper divisors (41246337).

82229631 is a wasteful number, since it uses less digits than its factorization.

82229631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its digits is 10368, while the sum is 33.

The square root of 82229631 is about 9068.0555247528. The cubic root of 82229631 is about 434.8533102961.

The spelling of 82229631 in words is "eighty-two million, two hundred twenty-nine thousand, six hundred thirty-one".