82378623 has 8 divisors (see below), whose sum is σ = 115619200. Its totient is φ = 52028568.

The previous prime is 82378619. The next prime is 82378631. The reversal of 82378623 is 32687328.

It is a happy number.

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

It is not a de Polignac number, because 82378623 - 2² = 82378619 is a prime.

It is a super-2 number, since 2×82378623² = 13572475054752258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82378643) 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, 722563 + ... + 722676.

It is an arithmetic number, because the mean of its divisors is an integer number (14452400).

Almost surely, 2^82378623 is an apocalyptic number.

82378623 is a deficient number, since it is larger than the sum of its proper divisors (33240577).

82378623 is a wasteful number, since it uses less digits than its factorization.

82378623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445261.

The product of its digits is 96768, while the sum is 39.

The square root of 82378623 is about 9076.2670189897. The cubic root of 82378623 is about 435.1157889676.

The spelling of 82378623 in words is "eighty-two million, three hundred seventy-eight thousand, six hundred twenty-three".