382782515 has 4 divisors (see below), whose sum is σ = 459339024. Its totient is φ = 306226008.

The previous prime is 382782511. The next prime is 382782529. The reversal of 382782515 is 515287283.

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

It is a cyclic number.

It is not a de Polignac number, because 382782515 - 2² = 382782511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382782511) 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, 38278247 + ... + 38278256.

It is an arithmetic number, because the mean of its divisors is an integer number (114834756).

Almost surely, 2^382782515 is an apocalyptic number.

382782515 is a deficient number, since it is larger than the sum of its proper divisors (76556509).

382782515 is an equidigital number, since it uses as much as digits as its factorization.

382782515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76556508.

The product of its digits is 134400, while the sum is 41.

The square root of 382782515 is about 19564.8285195654. The cubic root of 382782515 is about 726.0792582206.

The spelling of 382782515 in words is "three hundred eighty-two million, seven hundred eighty-two thousand, five hundred fifteen".