30423697 has 4 divisors (see below), whose sum is σ = 31472820. Its totient is φ = 29374576.

The previous prime is 30423691. The next prime is 30423709. The reversal of 30423697 is 79632403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79632403 = 17 ⋅4684259.

It can be written as a sum of positive squares in 2 ways, for example, as 23658496 + 6765201 = 4864^2 + 2601^2 .

It is a cyclic number.

It is not a de Polignac number, because 30423697 - 2¹¹ = 30421649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30423691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524518 + ... + 524575.

It is an arithmetic number, because the mean of its divisors is an integer number (7868205).

Almost surely, 2^30423697 is an apocalyptic number.

It is an amenable number.

30423697 is a deficient number, since it is larger than the sum of its proper divisors (1049123).

30423697 is a wasteful number, since it uses less digits than its factorization.

30423697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049122.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 30423697 is about 5515.7680335562. The cubic root of 30423697 is about 312.1792232667.

The spelling of 30423697 in words is "thirty million, four hundred twenty-three thousand, six hundred ninety-seven".