69730 has 16 divisors (see below), whose sum is σ = 132480. Its totient is φ = 26352.

The previous prime is 69709. The next prime is 69737. The reversal of 69730 is 3796.

69730 = T₇₆ + T₇₇ + ... + T₉₄.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 69695 and 69704.

It is not an unprimeable number, because it can be changed into a prime (69737) by changing a digit.

69730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7 + ... + 373.

It is an arithmetic number, because the mean of its divisors is an integer number (8280).

2⁶⁹⁷³⁰ is an apocalyptic number.

69730 is a deficient number, since it is larger than the sum of its proper divisors (62750).

69730 is a wasteful number, since it uses less digits than its factorization.

69730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 69730 is about 264.0643860879. The cubic root of 69730 is about 41.1597967705.

It can be divided in two parts, 697 and 30, that multiplied together give a triangular number (20910 = T₂₀₄).

The spelling of 69730 in words is "sixty-nine thousand, seven hundred thirty".