30368693 has 4 divisors (see below), whose sum is σ = 30555168. Its totient is φ = 30182220.

The previous prime is 30368683. The next prime is 30368699. The reversal of 30368693 is 39686303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39686303 = 157 ⋅252779.

It is a cyclic number.

It is not a de Polignac number, because 30368693 - 2⁴ = 30368677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30368699) 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, 92993 + ... + 93318.

It is an arithmetic number, because the mean of its divisors is an integer number (7638792).

Almost surely, 2^30368693 is an apocalyptic number.

It is an amenable number.

30368693 is a deficient number, since it is larger than the sum of its proper divisors (186475).

30368693 is a wasteful number, since it uses less digits than its factorization.

30368693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186474.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 30368693 is about 5510.7797088978. The cubic root of 30368693 is about 311.9909767553.

The spelling of 30368693 in words is "thirty million, three hundred sixty-eight thousand, six hundred ninety-three".