30229477 has 2 divisors, whose sum is σ = 30229478. Its totient is φ = 30229476.

The previous prime is 30229471. The next prime is 30229487. The reversal of 30229477 is 77492203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29257281 + 972196 = 5409^2 + 986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30229477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30229471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15114738 + 15114739.

It is an arithmetic number, because the mean of its divisors is an integer number (15114739).

Almost surely, 2^30229477 is an apocalyptic number.

It is an amenable number.

30229477 is a deficient number, since it is larger than the sum of its proper divisors (1).

30229477 is an equidigital number, since it uses as much as digits as its factorization.

30229477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 30229477 is about 5498.1339561709. The cubic root of 30229477 is about 311.5135039453.

The spelling of 30229477 in words is "thirty million, two hundred twenty-nine thousand, four hundred seventy-seven".