720754005 has 16 divisors (see below), whose sum is σ = 1155432384. Its totient is φ = 383660160.

The previous prime is 720753997. The next prime is 720754019. The reversal of 720754005 is 500457027.

It is not a de Polignac number, because 720754005 - 2³ = 720753997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38299 + ... + 53928.

It is an arithmetic number, because the mean of its divisors is an integer number (72214524).

Almost surely, 2^720754005 is an apocalyptic number.

It is an amenable number.

720754005 is a deficient number, since it is larger than the sum of its proper divisors (434678379).

720754005 is a wasteful number, since it uses less digits than its factorization.

720754005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92756.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 720754005 is about 26846.8621071439. The cubic root of 720754005 is about 896.5937106764.

The spelling of 720754005 in words is "seven hundred twenty million, seven hundred fifty-four thousand, five".