30109997 has 8 divisors (see below), whose sum is σ = 30479232. Its totient is φ = 29743200.

The previous prime is 30109991. The next prime is 30110023. The reversal of 30109997 is 79990103.

It is a happy number.

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 30109997 - 2⁸ = 30109741 is a prime.

It is a super-2 number, since 2×30109997² = 1813223838680018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30109997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30109991) 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, 36722 + ... + 37532.

It is an arithmetic number, because the mean of its divisors is an integer number (3809904).

Almost surely, 2^30109997 is an apocalyptic number.

It is an amenable number.

30109997 is a deficient number, since it is larger than the sum of its proper divisors (369235).

30109997 is a wasteful number, since it uses less digits than its factorization.

30109997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 30109997 is about 5487.2576939670. The cubic root of 30109997 is about 311.1025499014.

The spelling of 30109997 in words is "thirty million, one hundred nine thousand, nine hundred ninety-seven".