71204064 has 24 divisors (see below), whose sum is σ = 186910920. Its totient is φ = 23734656.

The previous prime is 71204059. The next prime is 71204071. The reversal of 71204064 is 46040217.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent 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, 370759 + ... + 370950.

It is an arithmetic number, because the mean of its divisors is an integer number (7787955).

Almost surely, 2^71204064 is an apocalyptic number.

It is an amenable number.

71204064 is an abundant number, since it is smaller than the sum of its proper divisors (115706856).

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

71204064 is a wasteful number, since it uses less digits than its factorization.

71204064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741722 (or 741714 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 71204064 is about 8438.2500555506. The cubic root of 71204064 is about 414.4781052623.

The spelling of 71204064 in words is "seventy-one million, two hundred four thousand, sixty-four".