83242287 has 12 divisors (see below), whose sum is σ = 126567480. Its totient is φ = 52573968.

The previous prime is 83242253. The next prime is 83242303. The reversal of 83242287 is 78224238.

It is not a de Polignac number, because 83242287 - 2⁸ = 83242031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83242087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243228 + ... + 243569.

It is an arithmetic number, because the mean of its divisors is an integer number (10547290).

Almost surely, 2^83242287 is an apocalyptic number.

83242287 is a deficient number, since it is larger than the sum of its proper divisors (43325193).

83242287 is a wasteful number, since it uses less digits than its factorization.

83242287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486822 (or 486819 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 83242287 is about 9123.7211158606. The cubic root of 83242287 is about 436.6311018047.

The spelling of 83242287 in words is "eighty-three million, two hundred forty-two thousand, two hundred eighty-seven".