820326470 has 16 divisors (see below), whose sum is σ = 1477251648. Its totient is φ = 327983040.

The previous prime is 820326467. The next prime is 820326497. The reversal of 820326470 is 74623028.

It is a congruent number.

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, 6515 + ... + 41025.

It is an arithmetic number, because the mean of its divisors is an integer number (92328228).

Almost surely, 2^820326470 is an apocalyptic number.

820326470 is a deficient number, since it is larger than the sum of its proper divisors (656925178).

820326470 is a wasteful number, since it uses less digits than its factorization.

820326470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36895.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 820326470 is about 28641.3419727498. The cubic root of 820326470 is about 936.1143623809.

Adding to 820326470 its reverse (74623028), we get a palindrome (894949498).

The spelling of 820326470 in words is "eight hundred twenty million, three hundred twenty-six thousand, four hundred seventy".