820614606 has 16 divisors (see below), whose sum is σ = 1875690624. Its totient is φ = 234461304.

The previous prime is 820614533. The next prime is 820614607. The reversal of 820614606 is 606416028.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820614607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9769180 + ... + 9769263.

It is an arithmetic number, because the mean of its divisors is an integer number (117230664).

Almost surely, 2^820614606 is an apocalyptic number.

820614606 is an abundant number, since it is smaller than the sum of its proper divisors (1055076018).

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

820614606 is a wasteful number, since it uses less digits than its factorization.

820614606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538455.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 820614606 is about 28646.3716027004. The cubic root of 820614606 is about 936.2239515439.

The spelling of 820614606 in words is "eight hundred twenty million, six hundred fourteen thousand, six hundred six".