82519770 has 32 divisors (see below), whose sum is σ = 198289152. Its totient is φ = 21978432.

The previous prime is 82519729. The next prime is 82519777. The reversal of 82519770 is 7791528.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82519777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41724 + ... + 43656.

It is an arithmetic number, because the mean of its divisors is an integer number (6196536).

Almost surely, 2^82519770 is an apocalyptic number.

82519770 is an abundant number, since it is smaller than the sum of its proper divisors (115769382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82519770 is a wasteful number, since it uses less digits than its factorization.

82519770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 82519770 is about 9084.0392997829. The cubic root of 82519770 is about 435.3641553649.

The spelling of 82519770 in words is "eighty-two million, five hundred nineteen thousand, seven hundred seventy".