735679421 has 2 divisors, whose sum is σ = 735679422. Its totient is φ = 735679420.

The previous prime is 735679367. The next prime is 735679423. The reversal of 735679421 is 124976537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432432025 + 303247396 = 20795^2 + 17414^2 .

It is a cyclic number.

It is not a de Polignac number, because 735679421 - 2¹⁰ = 735678397 is a prime.

Together with 735679423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (735679423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367839710 + 367839711.

It is an arithmetic number, because the mean of its divisors is an integer number (367839711).

Almost surely, 2^735679421 is an apocalyptic number.

It is an amenable number.

735679421 is a deficient number, since it is larger than the sum of its proper divisors (1).

735679421 is an equidigital number, since it uses as much as digits as its factorization.

735679421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 735679421 is about 27123.4109396293. The cubic root of 735679421 is about 902.7403803590.

The spelling of 735679421 in words is "seven hundred thirty-five million, six hundred seventy-nine thousand, four hundred twenty-one".