654432071 has 4 divisors (see below), whose sum is σ = 665524200. Its totient is φ = 643339944.

The previous prime is 654432019. The next prime is 654432091. The reversal of 654432071 is 170234456.

654432071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654432071 - 2¹⁴ = 654415687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654432001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545976 + ... + 5546093.

It is an arithmetic number, because the mean of its divisors is an integer number (166381050).

Almost surely, 2^654432071 is an apocalyptic number.

654432071 is a deficient number, since it is larger than the sum of its proper divisors (11092129).

654432071 is a wasteful number, since it uses less digits than its factorization.

654432071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092128.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 654432071 is about 25581.8699668339. The cubic root of 654432071 is about 868.2034848771.

The spelling of 654432071 in words is "six hundred fifty-four million, four hundred thirty-two thousand, seventy-one".