82713770 has 8 divisors (see below), whose sum is σ = 148884804. Its totient is φ = 33085504.

The previous prime is 82713767. The next prime is 82713791. The reversal of 82713770 is 7731728.

It can be written as a sum of positive squares in 2 ways, for example, as 74459641 + 8254129 = 8629^2 + 2873^2 .

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

It is a super-2 number, since 2×82713770² = 13683135495225800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82713770.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4135679 + ... + 4135698.

Almost surely, 2^82713770 is an apocalyptic number.

82713770 is a deficient number, since it is larger than the sum of its proper divisors (66171034).

82713770 is a wasteful number, since it uses less digits than its factorization.

82713770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271384.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 82713770 is about 9094.7111004144. The cubic root of 82713770 is about 435.7050617312.

The spelling of 82713770 in words is "eighty-two million, seven hundred thirteen thousand, seven hundred seventy".