30773047 has 2 divisors, whose sum is σ = 30773048. Its totient is φ = 30773046.

The previous prime is 30773023. The next prime is 30773051. The reversal of 30773047 is 74037703.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30773047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30773447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15386523 + 15386524.

It is an arithmetic number, because the mean of its divisors is an integer number (15386524).

Almost surely, 2^30773047 is an apocalyptic number.

30773047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30773047 is an equidigital number, since it uses as much as digits as its factorization.

30773047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 30773047 is about 5547.3459419798. The cubic root of 30773047 is about 313.3695784489.

The spelling of 30773047 in words is "thirty million, seven hundred seventy-three thousand, forty-seven".