70030 has 16 divisors (see below), whose sum is σ = 129600. Its totient is φ = 27232.

The previous prime is 70019. The next prime is 70039. The reversal of 70030 is 3007.

70030 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 69989 and 70016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70039) by changing a digit.

70030 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 544.

It is an arithmetic number, because the mean of its divisors is an integer number (8100).

2⁷⁰⁰³⁰ is an apocalyptic number.

70030 is a deficient number, since it is larger than the sum of its proper divisors (59570).

70030 is a wasteful number, since it uses less digits than its factorization.

70030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203.

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 70030 is about 264.6318197043. The cubic root of 70030 is about 41.2187397076.

Adding to 70030 its reverse (3007), we get a palindrome (73037).

The spelling of 70030 in words is "seventy thousand, thirty".