730078 has 4 divisors (see below), whose sum is σ = 1095120. Its totient is φ = 365038.

The previous prime is 730069. The next prime is 730091. The reversal of 730078 is 870037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870037 = 7 ⋅124291.

It is a congruent number.

It is an unprimeable number.

730078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182518 + ... + 182521.

It is an arithmetic number, because the mean of its divisors is an integer number (273780).

2⁷³⁰⁰⁷⁸ is an apocalyptic number.

730078 is a deficient number, since it is larger than the sum of its proper divisors (365042).

730078 is a wasteful number, since it uses less digits than its factorization.

730078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365041.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 730078 is about 854.4460193599. The cubic root of 730078 is about 90.0443402912.

The spelling of 730078 in words is "seven hundred thirty thousand, seventy-eight".