720608074 has 4 divisors (see below), whose sum is σ = 1080912114. Its totient is φ = 360304036.

The previous prime is 720608071. The next prime is 720608093. The reversal of 720608074 is 470806027.

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

It can be written as a sum of positive squares in only one way, i.e., 581533225 + 139074849 = 24115^2 + 11793^2 .

It is not an unprimeable number, because it can be changed into a prime (720608071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180152017 + ... + 180152020.

Almost surely, 2^720608074 is an apocalyptic number.

720608074 is a deficient number, since it is larger than the sum of its proper divisors (360304040).

720608074 is a wasteful number, since it uses less digits than its factorization.

720608074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360304039.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 720608074 is about 26844.1441286549. The cubic root of 720608074 is about 896.5331955088.

The spelling of 720608074 in words is "seven hundred twenty million, six hundred eight thousand, seventy-four".