82359749 has 4 divisors (see below), whose sum is σ = 84275136. Its totient is φ = 80444364.

The previous prime is 82359733. The next prime is 82359793. The reversal of 82359749 is 94795328.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82359749 - 2⁴ = 82359733 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 (82359049) 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, 957629 + ... + 957714.

It is an arithmetic number, because the mean of its divisors is an integer number (21068784).

Almost surely, 2^82359749 is an apocalyptic number.

It is an amenable number.

82359749 is a deficient number, since it is larger than the sum of its proper divisors (1915387).

82359749 is a wasteful number, since it uses less digits than its factorization.

82359749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915386.

The product of its digits is 544320, while the sum is 47.

The square root of 82359749 is about 9075.2272147864. The cubic root of 82359749 is about 435.0825562253.

The spelling of 82359749 in words is "eighty-two million, three hundred fifty-nine thousand, seven hundred forty-nine".