82230749 has 8 divisors (see below), whose sum is σ = 85092480. Its totient is φ = 79412256.

The previous prime is 82230739. The next prime is 82230763. The reversal of 82230749 is 94703228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82230749 is a prime.

It is a super-2 number, since 2×82230749² = 13523792162202002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82230739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6917 + ... + 14570.

It is an arithmetic number, because the mean of its divisors is an integer number (10636560).

Almost surely, 2^82230749 is an apocalyptic number.

82230749 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

82230749 is a deficient number, since it is larger than the sum of its proper divisors (2861731).

82230749 is a wasteful number, since it uses less digits than its factorization.

82230749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21619.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 82230749 is about 9068.1171695121. The cubic root of 82230749 is about 434.8552810528.

The spelling of 82230749 in words is "eighty-two million, two hundred thirty thousand, seven hundred forty-nine".