929474921 has 2 divisors, whose sum is σ = 929474922. Its totient is φ = 929474920.

The previous prime is 929474857. The next prime is 929474933. The reversal of 929474921 is 129474929.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 914760025 + 14714896 = 30245^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 929474921 - 2⁶ = 929474857 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (929470921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464737460 + 464737461.

It is an arithmetic number, because the mean of its divisors is an integer number (464737461).

Almost surely, 2^929474921 is an apocalyptic number.

It is an amenable number.

929474921 is a deficient number, since it is larger than the sum of its proper divisors (1).

929474921 is an equidigital number, since it uses as much as digits as its factorization.

929474921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 929474921 is about 30487.2911390960. The cubic root of 929474921 is about 975.9162707135.

The spelling of 929474921 in words is "nine hundred twenty-nine million, four hundred seventy-four thousand, nine hundred twenty-one".