720471577 has 32 divisors (see below), whose sum is σ = 890196480. Its totient is φ = 569103360.

The previous prime is 720471571. The next prime is 720471581. The reversal of 720471577 is 775174027.

It is not a de Polignac number, because 720471577 - 2⁷ = 720471449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720471571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272623 + ... + 2272939.

It is an arithmetic number, because the mean of its divisors is an integer number (27818640).

Almost surely, 2^720471577 is an apocalyptic number.

It is an amenable number.

720471577 is a deficient number, since it is larger than the sum of its proper divisors (169724903).

720471577 is a wasteful number, since it uses less digits than its factorization.

720471577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 96040, while the sum is 40.

The square root of 720471577 is about 26841.6016101871. The cubic root of 720471577 is about 896.4765850695.

The spelling of 720471577 in words is "seven hundred twenty million, four hundred seventy-one thousand, five hundred seventy-seven".