84291471 has 24 divisors (see below), whose sum is σ = 135083520. Its totient is φ = 50216400.

The previous prime is 84291461. The next prime is 84291479. The reversal of 84291471 is 17419248.

It is not a de Polignac number, because 84291471 - 2¹³ = 84283279 is a prime.

It is a super-3 number, since 3×84291471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84291479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1375 + ... + 13056.

It is an arithmetic number, because the mean of its divisors is an integer number (5628480).

Almost surely, 2^84291471 is an apocalyptic number.

84291471 is a deficient number, since it is larger than the sum of its proper divisors (50792049).

84291471 is a wasteful number, since it uses less digits than its factorization.

84291471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14507 (or 14504 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 84291471 is about 9181.0386667305. The cubic root of 84291471 is about 438.4578779650.

The spelling of 84291471 in words is "eighty-four million, two hundred ninety-one thousand, four hundred seventy-one".