82361631 has 8 divisors (see below), whose sum is σ = 119798784. Its totient is φ = 49916120.

The previous prime is 82361623. The next prime is 82361639. The reversal of 82361631 is 13616328.

It is an interprime number because it is at equal distance from previous prime (82361623) and next prime (82361639).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82361631 - 2³ = 82361623 is a prime.

It is a super-2 number, since 2×82361631² = 13566876521960322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82361639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247871 + ... + 1247936.

It is an arithmetic number, because the mean of its divisors is an integer number (14974848).

Almost surely, 2^82361631 is an apocalyptic number.

82361631 is a deficient number, since it is larger than the sum of its proper divisors (37437153).

82361631 is a wasteful number, since it uses less digits than its factorization.

82361631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495821.

The product of its digits is 5184, while the sum is 30.

The square root of 82361631 is about 9075.3309030580. The cubic root of 82361631 is about 435.0858702192.

Adding to 82361631 its reverse (13616328), we get a palindrome (95977959).

The spelling of 82361631 in words is "eighty-two million, three hundred sixty-one thousand, six hundred thirty-one".