71400084 has 48 divisors (see below), whose sum is σ = 195554688. Its totient is φ = 19847808.

The previous prime is 71400083. The next prime is 71400101. The reversal of 71400084 is 48000417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71400083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8379 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (4074056).

Almost surely, 2^71400084 is an apocalyptic number.

71400084 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

71400084 is an abundant number, since it is smaller than the sum of its proper divisors (124154604).

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

71400084 is a wasteful number, since it uses less digits than its factorization.

71400084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024 (or 23022 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 71400084 is about 8449.8570402108. The cubic root of 71400084 is about 414.8581002257.

The spelling of 71400084 in words is "seventy-one million, four hundred thousand, eighty-four".