730870 has 32 divisors (see below), whose sum is σ = 1539648. Its totient is φ = 244608.

The previous prime is 730867. The next prime is 730879. The reversal of 730870 is 78037.

It is a super-4 number, since 4×730870⁴ (a number of 25 digits) contains 4444 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730870.

It is not an unprimeable number, because it can be changed into a prime (730879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3612 + ... + 3808.

It is an arithmetic number, because the mean of its divisors is an integer number (48114).

2⁷³⁰⁸⁷⁰ is an apocalyptic number.

730870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

730870 is an abundant number, since it is smaller than the sum of its proper divisors (808778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

730870 is a wasteful number, since it uses less digits than its factorization.

730870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

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

The square root of 730870 is about 854.9093519198. The cubic root of 730870 is about 90.0768890258.

It can be divided in two parts, 730 and 870, that added together give a square (1600 = 40²).

The spelling of 730870 in words is "seven hundred thirty thousand, eight hundred seventy".