836064642 has 16 divisors (see below), whose sum is σ = 1911004992. Its totient is φ = 238875600.

The previous prime is 836064611. The next prime is 836064667. The reversal of 836064642 is 246460638.

It is a self number, because there is not a number n which added to its sum of digits gives 836064642.

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, 9953109 + ... + 9953192.

It is an arithmetic number, because the mean of its divisors is an integer number (119437812).

Almost surely, 2^836064642 is an apocalyptic number.

836064642 is an abundant number, since it is smaller than the sum of its proper divisors (1074940350).

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

836064642 is a wasteful number, since it uses less digits than its factorization.

836064642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19906313.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 836064642 is about 28914.7824131533. The cubic root of 836064642 is about 942.0630116387.

The spelling of 836064642 in words is "eight hundred thirty-six million, sixty-four thousand, six hundred forty-two".