30769755 has 16 divisors (see below), whose sum is σ = 50563104. Its totient is φ = 15966720.

The previous prime is 30769729. The next prime is 30769757. The reversal of 30769755 is 55796703.

It is not a de Polignac number, because 30769755 - 2⁶ = 30769691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30769757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27166 + ... + 28275.

It is an arithmetic number, because the mean of its divisors is an integer number (3160194).

Almost surely, 2^30769755 is an apocalyptic number.

30769755 is a deficient number, since it is larger than the sum of its proper divisors (19793349).

30769755 is a wasteful number, since it uses less digits than its factorization.

30769755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55486.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 30769755 is about 5547.0492155740. The cubic root of 30769755 is about 313.3584036326.

The spelling of 30769755 in words is "thirty million, seven hundred sixty-nine thousand, seven hundred fifty-five".