820702002 has 32 divisors (see below), whose sum is σ = 1686303360. Its totient is φ = 266122880.

The previous prime is 820701953. The next prime is 820702033. The reversal of 820702002 is 200207028.

It is a self number, because there is not a number n which added to its sum of digits gives 820702002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83668 + ... + 92960.

It is an arithmetic number, because the mean of its divisors is an integer number (52696980).

Almost surely, 2^820702002 is an apocalyptic number.

820702002 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

820702002 is an abundant number, since it is smaller than the sum of its proper divisors (865601358).

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

820702002 is a wasteful number, since it uses less digits than its factorization.

820702002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9698.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 820702002 is about 28647.8969908788. The cubic root of 820702002 is about 936.2571865215.

The spelling of 820702002 in words is "eight hundred twenty million, seven hundred two thousand, two".