30970829 has 8 divisors (see below), whose sum is σ = 32272128. Its totient is φ = 29688480.

The previous prime is 30970783. The next prime is 30970837. The reversal of 30970829 is 92807903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30970829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30970792 and 30970801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 7985.

It is an arithmetic number, because the mean of its divisors is an integer number (4034016).

Almost surely, 2^30970829 is an apocalyptic number.

It is an amenable number.

30970829 is a deficient number, since it is larger than the sum of its proper divisors (1301299).

30970829 is a wasteful number, since it uses less digits than its factorization.

30970829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 30970829 is about 5565.1441131385. The cubic root of 30970829 is about 314.0394996761.

The spelling of 30970829 in words is "thirty million, nine hundred seventy thousand, eight hundred twenty-nine".