86461870 has 16 divisors (see below), whose sum is σ = 169779888. Its totient is φ = 31440640.

The previous prime is 86461819. The next prime is 86461871. The reversal of 86461870 is 7816468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86461871) 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, 392899 + ... + 393118.

It is an arithmetic number, because the mean of its divisors is an integer number (10611243).

Almost surely, 2^86461870 is an apocalyptic number.

86461870 is a deficient number, since it is larger than the sum of its proper divisors (83318018).

86461870 is a wasteful number, since it uses less digits than its factorization.

86461870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786035.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 86461870 is about 9298.4875114182. The cubic root of 86461870 is about 442.1892782833.

The spelling of 86461870 in words is "eighty-six million, four hundred sixty-one thousand, eight hundred seventy".