30770923 has 4 divisors (see below), whose sum is σ = 30784960. Its totient is φ = 30756888.

The previous prime is 30770911. The next prime is 30770933. The reversal of 30770923 is 32907703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32907703 = 4261 ⋅7723.

It is a cyclic number.

It is not a de Polignac number, because 30770923 - 2¹³ = 30762731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30770933) 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, 2940 + ... + 8377.

It is an arithmetic number, because the mean of its divisors is an integer number (7696240).

Almost surely, 2^30770923 is an apocalyptic number.

30770923 is a deficient number, since it is larger than the sum of its proper divisors (14037).

30770923 is a wasteful number, since it uses less digits than its factorization.

30770923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14036.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 30770923 is about 5547.1544957753. The cubic root of 30770923 is about 313.3623685432.

The spelling of 30770923 in words is "thirty million, seven hundred seventy thousand, nine hundred twenty-three".