82374391 has 4 divisors (see below), whose sum is σ = 89862984. Its totient is φ = 74885800.

The previous prime is 82374379. The next prime is 82374403. The reversal of 82374391 is 19347328.

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

It is an interprime number because it is at equal distance from previous prime (82374379) and next prime (82374403).

It is not a de Polignac number, because 82374391 - 2¹¹ = 82372343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82374391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82374301) 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, 3744280 + ... + 3744301.

It is an arithmetic number, because the mean of its divisors is an integer number (22465746).

Almost surely, 2^82374391 is an apocalyptic number.

82374391 is a deficient number, since it is larger than the sum of its proper divisors (7488593).

82374391 is a wasteful number, since it uses less digits than its factorization.

82374391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7488592.

The product of its digits is 36288, while the sum is 37.

The square root of 82374391 is about 9076.0338805009. The cubic root of 82374391 is about 435.1083378374.

It can be divided in two parts, 82 and 374391, that added together give a palindrome (374473).

The spelling of 82374391 in words is "eighty-two million, three hundred seventy-four thousand, three hundred ninety-one".