82770444 has 24 divisors (see below), whose sum is σ = 214590320. Its totient is φ = 27590112.

The previous prime is 82770439. The next prime is 82770461. The reversal of 82770444 is 44407728.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 82770399 and 82770408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383089 + ... + 383304.

Almost surely, 2^82770444 is an apocalyptic number.

It is an amenable number.

82770444 is an abundant number, since it is smaller than the sum of its proper divisors (131819876).

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

82770444 is a wasteful number, since it uses less digits than its factorization.

82770444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766406 (or 766398 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 82770444 is about 9097.8263338008. The cubic root of 82770444 is about 435.8045514577.

The spelling of 82770444 in words is "eighty-two million, seven hundred seventy thousand, four hundred forty-four".