82926191 has 4 divisors (see below), whose sum is σ = 83221584. Its totient is φ = 82630800.

The previous prime is 82926169. The next prime is 82926199. The reversal of 82926191 is 19162928.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82926191 - 2¹⁴ = 82909807 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 (82926199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147275 + ... + 147836.

It is an arithmetic number, because the mean of its divisors is an integer number (20805396).

Almost surely, 2^82926191 is an apocalyptic number.

82926191 is a deficient number, since it is larger than the sum of its proper divisors (295393).

82926191 is a wasteful number, since it uses less digits than its factorization.

82926191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295392.

The product of its digits is 15552, while the sum is 38.

The square root of 82926191 is about 9106.3818830532. The cubic root of 82926191 is about 436.0777275642.

The spelling of 82926191 in words is "eighty-two million, nine hundred twenty-six thousand, one hundred ninety-one".