30993070 has 8 divisors (see below), whose sum is σ = 55787544. Its totient is φ = 12397224.

The previous prime is 30993059. The next prime is 30993071. The reversal of 30993070 is 7039903.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30993071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549644 + ... + 1549663.

It is an arithmetic number, because the mean of its divisors is an integer number (6973443).

Almost surely, 2^30993070 is an apocalyptic number.

30993070 is a deficient number, since it is larger than the sum of its proper divisors (24794474).

30993070 is a wasteful number, since it uses less digits than its factorization.

30993070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099314.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 30993070 is about 5567.1419956743. The cubic root of 30993070 is about 314.1146551420.

The spelling of 30993070 in words is "thirty million, nine hundred ninety-three thousand, seventy".