82741945 has 32 divisors (see below), whose sum is σ = 120443904. Its totient is φ = 53740800.

The previous prime is 82741931. The next prime is 82741969. The reversal of 82741945 is 54914728.

It is not a de Polignac number, because 82741945 - 2⁵ = 82741913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82741898 and 82741907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20299 + ... + 24031.

It is an arithmetic number, because the mean of its divisors is an integer number (3763872).

Almost surely, 2^82741945 is an apocalyptic number.

It is an amenable number.

82741945 is a deficient number, since it is larger than the sum of its proper divisors (37701959).

82741945 is a wasteful number, since it uses less digits than its factorization.

82741945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793.

The product of its digits is 80640, while the sum is 40.

The square root of 82741945 is about 9096.2599457140. The cubic root of 82741945 is about 435.7545278863.

The spelling of 82741945 in words is "eighty-two million, seven hundred forty-one thousand, nine hundred forty-five".