1716620073 has 16 divisors (see below), whose sum is σ = 2620173696. Its totient is φ = 979286400.

The previous prime is 1716620063. The next prime is 1716620077. The reversal of 1716620073 is 3700266171.

It is not a de Polignac number, because 1716620073 - 2⁹ = 1716619561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1716620077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55386 + ... + 80627.

It is an arithmetic number, because the mean of its divisors is an integer number (163760856).

Almost surely, 2^1716620073 is an apocalyptic number.

It is an amenable number.

1716620073 is a deficient number, since it is larger than the sum of its proper divisors (903553623).

1716620073 is a wasteful number, since it uses less digits than its factorization.

1716620073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136624.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 1716620073 is about 41432.1140300613. The cubic root of 1716620073 is about 1197.3599536946.

The spelling of 1716620073 in words is "one billion, seven hundred sixteen million, six hundred twenty thousand, seventy-three".