820606046 has 16 divisors (see below), whose sum is σ = 1326208464. Its totient is φ = 378565824.

The previous prime is 820606037. The next prime is 820606051. The reversal of 820606046 is 640606028.

It is a happy number.

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, 62465 + ... + 74451.

It is an arithmetic number, because the mean of its divisors is an integer number (82888029).

Almost surely, 2^820606046 is an apocalyptic number.

820606046 is a deficient number, since it is larger than the sum of its proper divisors (505602418).

820606046 is a wasteful number, since it uses less digits than its factorization.

820606046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14635.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 820606046 is about 28646.2221942091. Note that the first 3 decimals coincide. The cubic root of 820606046 is about 936.2206962177.

The spelling of 820606046 in words is "eight hundred twenty million, six hundred six thousand, forty-six".