30977269 has 2 divisors, whose sum is σ = 30977270. Its totient is φ = 30977268.

The previous prime is 30977267. The next prime is 30977273. The reversal of 30977269 is 96277903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 2140369 = 5370^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 30977269 - 2¹ = 30977267 is a prime.

It is a super-2 number, since 2×30977269² = 1919182389396722, which contains 22 as substring.

Together with 30977267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30977267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15488634 + 15488635.

It is an arithmetic number, because the mean of its divisors is an integer number (15488635).

Almost surely, 2^30977269 is an apocalyptic number.

It is an amenable number.

30977269 is a deficient number, since it is larger than the sum of its proper divisors (1).

30977269 is an equidigital number, since it uses as much as digits as its factorization.

30977269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 30977269 is about 5565.7226844319. The cubic root of 30977269 is about 314.0612650414.

The spelling of 30977269 in words is "thirty million, nine hundred seventy-seven thousand, two hundred sixty-nine".