82938505 has 8 divisors (see below), whose sum is σ = 107182152. Its totient is φ = 61246848.

The previous prime is 82938487. The next prime is 82938523. The reversal of 82938505 is 50583928.

It is an interprime number because it is at equal distance from previous prime (82938487) and next prime (82938523).

It can be written as a sum of positive squares in 4 ways, for example, as 927369 + 82011136 = 963^2 + 9056^2 .

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

It is not a de Polignac number, because 82938505 - 2¹³ = 82930313 is a prime.

It is a super-2 number, since 2×82938505² = 13757591223270050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637924 + ... + 638053.

It is an arithmetic number, because the mean of its divisors is an integer number (13397769).

Almost surely, 2^82938505 is an apocalyptic number.

It is an amenable number.

82938505 is a deficient number, since it is larger than the sum of its proper divisors (24243647).

82938505 is a wasteful number, since it uses less digits than its factorization.

82938505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275995.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 82938505 is about 9107.0579771955. The cubic root of 82938505 is about 436.0993113980.

The spelling of 82938505 in words is "eighty-two million, nine hundred thirty-eight thousand, five hundred five".