82955405 has 8 divisors (see below), whose sum is σ = 107203992. Its totient is φ = 61259328.

The previous prime is 82955371. The next prime is 82955407. The reversal of 82955405 is 50455928.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 82937449 = 134^2 + 9107^2 .

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

It is not a de Polignac number, because 82955405 - 2⁸ = 82955149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82955407) 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, 638054 + ... + 638183.

It is an arithmetic number, because the mean of its divisors is an integer number (13400499).

Almost surely, 2^82955405 is an apocalyptic number.

It is an amenable number.

82955405 is a deficient number, since it is larger than the sum of its proper divisors (24248587).

82955405 is a wasteful number, since it uses less digits than its factorization.

82955405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276255.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 82955405 is about 9107.9857817192. The cubic root of 82955405 is about 436.1289300407.

The spelling of 82955405 in words is "eighty-two million, nine hundred fifty-five thousand, four hundred five".