838870061 has 8 divisors (see below), whose sum is σ = 859136760. Its totient is φ = 818767872.

The previous prime is 838870051. The next prime is 838870069. The reversal of 838870061 is 160078838.

It can be written as a sum of positive squares in 4 ways, for example, as 320624836 + 518245225 = 17906^2 + 22765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838870061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838870069) 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, 30776 + ... + 51233.

It is an arithmetic number, because the mean of its divisors is an integer number (107392095).

Almost surely, 2^838870061 is an apocalyptic number.

It is an amenable number.

838870061 is a deficient number, since it is larger than the sum of its proper divisors (20266699).

838870061 is a wasteful number, since it uses less digits than its factorization.

838870061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82255.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 838870061 is about 28963.2536328362. The cubic root of 838870061 is about 943.1155342829.

The spelling of 838870061 in words is "eight hundred thirty-eight million, eight hundred seventy thousand, sixty-one".