1421929433 has 2 divisors, whose sum is σ = 1421929434. Its totient is φ = 1421929432.

The previous prime is 1421929423. The next prime is 1421929501. The reversal of 1421929433 is 3349291241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1344542224 + 77387209 = 36668^2 + 8797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421929433 - 2⁴ = 1421929417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1421929403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710964716 + 710964717.

It is an arithmetic number, because the mean of its divisors is an integer number (710964717).

Almost surely, 2^1421929433 is an apocalyptic number.

It is an amenable number.

1421929433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421929433 is an equidigital number, since it uses as much as digits as its factorization.

1421929433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 1421929433 is about 37708.4795901399. The cubic root of 1421929433 is about 1124.4997105246.

The spelling of 1421929433 in words is "one billion, four hundred twenty-one million, nine hundred twenty-nine thousand, four hundred thirty-three".