743648531 has 2 divisors, whose sum is σ = 743648532. Its totient is φ = 743648530.

The previous prime is 743648501. The next prime is 743648551. The reversal of 743648531 is 135846347.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 743648531 - 2¹⁴ = 743632147 is a prime.

It is a super-2 number, since 2×743648531² = 1106026275316915922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (743648501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371824265 + 371824266.

It is an arithmetic number, because the mean of its divisors is an integer number (371824266).

Almost surely, 2^743648531 is an apocalyptic number.

743648531 is a deficient number, since it is larger than the sum of its proper divisors (1).

743648531 is an equidigital number, since it uses as much as digits as its factorization.

743648531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 743648531 is about 27269.9198935384. The cubic root of 743648531 is about 905.9882699370.

The spelling of 743648531 in words is "seven hundred forty-three million, six hundred forty-eight thousand, five hundred thirty-one".