86838770 has 8 divisors (see below), whose sum is σ = 156309804. Its totient is φ = 34735504.

The previous prime is 86838769. The next prime is 86838793. The reversal of 86838770 is 7783868.

It can be written as a sum of positive squares in 2 ways, for example, as 81414529 + 5424241 = 9023^2 + 2329^2 .

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

It is a super-2 number, since 2×86838770² = 15081943950225800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4341929 + ... + 4341948.

Almost surely, 2^86838770 is an apocalyptic number.

86838770 is a deficient number, since it is larger than the sum of its proper divisors (69471034).

86838770 is a wasteful number, since it uses less digits than its factorization.

86838770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683884.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 86838770 is about 9318.7322099092. The cubic root of 86838770 is about 442.8308696073.

The spelling of 86838770 in words is "eighty-six million, eight hundred thirty-eight thousand, seven hundred seventy".