715530 has 64 divisors (see below), whose sum is σ = 1928448. Its totient is φ = 168960.

The previous prime is 715523. The next prime is 715537. The reversal of 715530 is 35517.

715530 = T₄₉ + T₅₀ + ... + T₁₆₃.

It is a happy number.

715530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (715523) and next prime (715537).

It is a junction number, because it is equal to n+sod(n) for n = 715497 and 715506.

It is not an unprimeable number, because it can be changed into a prime (715537) by changing a digit.

715530 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 in 31 ways as a sum of consecutive naturals, for example, 11700 + ... + 11760.

It is an arithmetic number, because the mean of its divisors is an integer number (30132).

2⁷¹⁵⁵³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 715530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964224).

715530 is an abundant number, since it is smaller than the sum of its proper divisors (1212918).

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

715530 is a wasteful number, since it uses less digits than its factorization.

715530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 715530 is about 845.8900637790. The cubic root of 715530 is about 89.4422293973.

The spelling of 715530 in words is "seven hundred fifteen thousand, five hundred thirty".