734263021 has 2 divisors, whose sum is σ = 734263022. Its totient is φ = 734263020.

The previous prime is 734262989. The next prime is 734263067. The reversal of 734263021 is 120362437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411521796 + 322741225 = 20286^2 + 17965^2 .

It is a cyclic number.

It is not a de Polignac number, because 734263021 - 2⁵ = 734262989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734263121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367131510 + 367131511.

It is an arithmetic number, because the mean of its divisors is an integer number (367131511).

Almost surely, 2^734263021 is an apocalyptic number.

It is an amenable number.

734263021 is a deficient number, since it is larger than the sum of its proper divisors (1).

734263021 is an equidigital number, since it uses as much as digits as its factorization.

734263021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 734263021 is about 27097.2880746395. The cubic root of 734263021 is about 902.1606609394.

The spelling of 734263021 in words is "seven hundred thirty-four million, two hundred sixty-three thousand, twenty-one".