30763861 has 2 divisors, whose sum is σ = 30763862. Its totient is φ = 30763860.

The previous prime is 30763823. The next prime is 30763871. The reversal of 30763861 is 16836703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 722500 = 5481^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 30763861 - 2⁹ = 30763349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30763801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15381930 + 15381931.

It is an arithmetic number, because the mean of its divisors is an integer number (15381931).

Almost surely, 2^30763861 is an apocalyptic number.

It is an amenable number.

30763861 is a deficient number, since it is larger than the sum of its proper divisors (1).

30763861 is an equidigital number, since it uses as much as digits as its factorization.

30763861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30763861 is about 5546.5179166753. The cubic root of 30763861 is about 313.3383942395.

The spelling of 30763861 in words is "thirty million, seven hundred sixty-three thousand, eight hundred sixty-one".