720074 has 4 divisors (see below), whose sum is σ = 1080114. Its totient is φ = 360036.

The previous prime is 720059. The next prime is 720089. The reversal of 720074 is 470027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470027 = 127 ⋅3701.

It is an interprime number because it is at equal distance from previous prime (720059) and next prime (720089).

It can be written as a sum of positive squares in only one way, i.e., 511225 + 208849 = 715^2 + 457^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180017 + ... + 180020.

2⁷²⁰⁰⁷⁴ is an apocalyptic number.

720074 is a deficient number, since it is larger than the sum of its proper divisors (360040).

720074 is a wasteful number, since it uses less digits than its factorization.

720074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360039.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 720074 is about 848.5717412217. The cubic root of 720074 is about 89.6311654181.

Subtracting from 720074 its reverse (470027), we obtain a cube (250047 = 63³).

The spelling of 720074 in words is "seven hundred twenty thousand, seventy-four", and thus it is an iban number.