86571474 has 16 divisors (see below), whose sum is σ = 188883360. Its totient is φ = 26233760.

The previous prime is 86571469. The next prime is 86571479. The reversal of 86571474 is 47417568.

It is an interprime number because it is at equal distance from previous prime (86571469) and next prime (86571479).

It is a super-2 number, since 2×86571474² = 14989240221065352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86571479) 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, 655779 + ... + 655910.

It is an arithmetic number, because the mean of its divisors is an integer number (11805210).

Almost surely, 2^86571474 is an apocalyptic number.

86571474 is an abundant number, since it is smaller than the sum of its proper divisors (102311886).

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

86571474 is a wasteful number, since it uses less digits than its factorization.

86571474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311705.

The product of its digits is 188160, while the sum is 42.

The square root of 86571474 is about 9304.3792914949. The cubic root of 86571474 is about 442.3760475060.

The spelling of 86571474 in words is "eighty-six million, five hundred seventy-one thousand, four hundred seventy-four".