30969955 has 4 divisors (see below), whose sum is σ = 37163952. Its totient is φ = 24775960.

The previous prime is 30969919. The next prime is 30969959. The reversal of 30969955 is 55996903.

It is a happy number.

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

It is not a de Polignac number, because 30969955 - 2⁹ = 30969443 is a prime.

It is a super-2 number, since 2×30969955² = 1918276225404050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30969959) 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, 3096991 + ... + 3097000.

It is an arithmetic number, because the mean of its divisors is an integer number (9290988).

Almost surely, 2^30969955 is an apocalyptic number.

30969955 is a deficient number, since it is larger than the sum of its proper divisors (6193997).

30969955 is an equidigital number, since it uses as much as digits as its factorization.

30969955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193996.

The product of its (nonzero) digits is 328050, while the sum is 46.

The square root of 30969955 is about 5565.0655881130. The cubic root of 30969955 is about 314.0365455726.

The spelling of 30969955 in words is "thirty million, nine hundred sixty-nine thousand, nine hundred fifty-five".