82281937 has 4 divisors (see below), whose sum is σ = 82340020. Its totient is φ = 82223856.

The previous prime is 82281929. The next prime is 82281959. The reversal of 82281937 is 73918228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61842496 + 20439441 = 7864^2 + 4521^2 .

It is a cyclic number.

It is not a de Polignac number, because 82281937 - 2³ = 82281929 is a prime.

It is a deceptive number, since it divides R_82281936.

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 82281937.

It is not an unprimeable number, because it can be changed into a prime (82281337) 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, 26862 + ... + 29767.

It is an arithmetic number, because the mean of its divisors is an integer number (20585005).

Almost surely, 2^82281937 is an apocalyptic number.

It is an amenable number.

82281937 is a deficient number, since it is larger than the sum of its proper divisors (58083).

82281937 is a wasteful number, since it uses less digits than its factorization.

82281937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58082.

The product of its digits is 48384, while the sum is 40.

The square root of 82281937 is about 9070.9391465272. The cubic root of 82281937 is about 434.9454936770.

The spelling of 82281937 in words is "eighty-two million, two hundred eighty-one thousand, nine hundred thirty-seven".