30923107 has 4 divisors (see below), whose sum is σ = 31212216. Its totient is φ = 30634000.

The previous prime is 30923099. The next prime is 30923111. The reversal of 30923107 is 70132903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30923107 - 2³ = 30923099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30923177) 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, 144394 + ... + 144607.

It is an arithmetic number, because the mean of its divisors is an integer number (7803054).

Almost surely, 2^30923107 is an apocalyptic number.

30923107 is a deficient number, since it is larger than the sum of its proper divisors (289109).

30923107 is a wasteful number, since it uses less digits than its factorization.

30923107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289108.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 30923107 is about 5560.8548803219. The cubic root of 30923107 is about 313.8781188161.

It can be divided in two parts, 30923 and 107, that multiplied together give a square (3308761 = 1819²).

The spelling of 30923107 in words is "thirty million, nine hundred twenty-three thousand, one hundred seven".