75982215 has 8 divisors (see below), whose sum is σ = 121571568. Its totient is φ = 40523840.

The previous prime is 75982213. The next prime is 75982219. The reversal of 75982215 is 51228957.

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

It is not a de Polignac number, because 75982215 - 2¹ = 75982213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75982211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532726 + ... + 2532755.

It is an arithmetic number, because the mean of its divisors is an integer number (15196446).

Almost surely, 2^75982215 is an apocalyptic number.

75982215 is a deficient number, since it is larger than the sum of its proper divisors (45589353).

75982215 is a wasteful number, since it uses less digits than its factorization.

75982215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065489.

The product of its digits is 50400, while the sum is 39.

The square root of 75982215 is about 8716.7777876920. Note that the first 4 decimals coincide. The cubic root of 75982215 is about 423.5493145660.

The spelling of 75982215 in words is "seventy-five million, nine hundred eighty-two thousand, two hundred fifteen".