30497707 has 16 divisors (see below), whose sum is σ = 32643072. Its totient is φ = 28445760.

The previous prime is 30497671. The next prime is 30497723. The reversal of 30497707 is 70779403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30497707 is a prime.

It is a super-2 number, since 2×30497707² = 1860220264515698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30497107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182538 + ... + 182704.

It is an arithmetic number, because the mean of its divisors is an integer number (2040192).

Almost surely, 2^30497707 is an apocalyptic number.

30497707 is a deficient number, since it is larger than the sum of its proper divisors (2145365).

30497707 is a wasteful number, since it uses less digits than its factorization.

30497707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 30497707 is about 5522.4729062260. The cubic root of 30497707 is about 312.4321584998.

The spelling of 30497707 in words is "thirty million, four hundred ninety-seven thousand, seven hundred seven".