30493897 has 8 divisors (see below), whose sum is σ = 34897856. Its totient is φ = 26101872.

The previous prime is 30493891. The next prime is 30493919. The reversal of 30493897 is 79839403.

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

It is a cyclic number.

It is not a de Polignac number, because 30493897 - 2¹⁹ = 29969609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30493891) 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, 3418 + ... + 8524.

It is an arithmetic number, because the mean of its divisors is an integer number (4362232).

Almost surely, 2^30493897 is an apocalyptic number.

It is an amenable number.

30493897 is a deficient number, since it is larger than the sum of its proper divisors (4403959).

30493897 is an equidigital number, since it uses as much as digits as its factorization.

30493897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 30493897 is about 5522.1279412922. The cubic root of 30493897 is about 312.4191475097.

The spelling of 30493897 in words is "thirty million, four hundred ninety-three thousand, eight hundred ninety-seven".