654729071 has 2 divisors, whose sum is σ = 654729072. Its totient is φ = 654729070.

The previous prime is 654729067. The next prime is 654729073. The reversal of 654729071 is 170927456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654729071 - 2² = 654729067 is a prime.

Together with 654729073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654729073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327364535 + 327364536.

It is an arithmetic number, because the mean of its divisors is an integer number (327364536).

Almost surely, 2^654729071 is an apocalyptic number.

654729071 is a deficient number, since it is larger than the sum of its proper divisors (1).

654729071 is an equidigital number, since it uses as much as digits as its factorization.

654729071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 654729071 is about 25587.6742006772. The cubic root of 654729071 is about 868.3348035419.

The spelling of 654729071 in words is "six hundred fifty-four million, seven hundred twenty-nine thousand, seventy-one".