927031421 has 2 divisors, whose sum is σ = 927031422. Its totient is φ = 927031420.

The previous prime is 927031381. The next prime is 927031433. The reversal of 927031421 is 124130729.

927031421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717650521 + 209380900 = 26789^2 + 14470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-927031421 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (927031121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463515710 + 463515711.

It is an arithmetic number, because the mean of its divisors is an integer number (463515711).

Almost surely, 2^927031421 is an apocalyptic number.

It is an amenable number.

927031421 is a deficient number, since it is larger than the sum of its proper divisors (1).

927031421 is an equidigital number, since it uses as much as digits as its factorization.

927031421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 927031421 is about 30447.1906914250. The cubic root of 927031421 is about 975.0603235962.

The spelling of 927031421 in words is "nine hundred twenty-seven million, thirty-one thousand, four hundred twenty-one".