82820410 has 16 divisors (see below), whose sum is σ = 152713512. Its totient is φ = 32320000.

The previous prime is 82820399. The next prime is 82820429. The reversal of 82820410 is 1402828.

It can be written as a sum of positive squares in 4 ways, for example, as 70408881 + 12411529 = 8391^2 + 3523^2 .

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, 100591 + ... + 101410.

Almost surely, 2^82820410 is an apocalyptic number.

82820410 is a deficient number, since it is larger than the sum of its proper divisors (69893102).

82820410 is a wasteful number, since it uses less digits than its factorization.

82820410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202049.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 82820410 is about 9100.5719600473. The cubic root of 82820410 is about 435.8922278025.

The spelling of 82820410 in words is "eighty-two million, eight hundred twenty thousand, four hundred ten".