870420061 has 8 divisors (see below), whose sum is σ = 1017900224. Its totient is φ = 728723520.

The previous prime is 870420053. The next prime is 870420127. The reversal of 870420061 is 160024078.

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

It is not a de Polignac number, because 870420061 - 2³ = 870420053 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 (870420011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445580 + ... + 1446181.

It is an arithmetic number, because the mean of its divisors is an integer number (127237528).

Almost surely, 2^870420061 is an apocalyptic number.

It is an amenable number.

870420061 is a deficient number, since it is larger than the sum of its proper divisors (147480163).

870420061 is a wasteful number, since it uses less digits than its factorization.

870420061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891811.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 870420061 is about 29502.8822490278. The cubic root of 870420061 is about 954.7938887999.

The spelling of 870420061 in words is "eight hundred seventy million, four hundred twenty thousand, sixty-one".