82874109 has 16 divisors (see below), whose sum is σ = 113265152. Its totient is φ = 53882928.

The previous prime is 82874107. The next prime is 82874119. The reversal of 82874109 is 90147828.

It is not a de Polignac number, because 82874109 - 2¹ = 82874107 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 (82874101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18702 + ... + 22704.

It is an arithmetic number, because the mean of its divisors is an integer number (7079072).

Almost surely, 2^82874109 is an apocalyptic number.

It is an amenable number.

82874109 is a deficient number, since it is larger than the sum of its proper divisors (30391043).

82874109 is a wasteful number, since it uses less digits than its factorization.

82874109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 82874109 is about 9103.5217910433. The cubic root of 82874109 is about 435.9864152123.

The spelling of 82874109 in words is "eighty-two million, eight hundred seventy-four thousand, one hundred nine".