749046643 has 2 divisors, whose sum is σ = 749046644. Its totient is φ = 749046642.

The previous prime is 749046631. The next prime is 749046647. The reversal of 749046643 is 346640947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749046643 - 2²⁹ = 212175731 is a prime.

It is a super-2 number, since 2×749046643² = 1122141746779138898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749046643.

It is not a weakly prime, because it can be changed into another prime (749046647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374523321 + 374523322.

It is an arithmetic number, because the mean of its divisors is an integer number (374523322).

Almost surely, 2^749046643 is an apocalyptic number.

749046643 is a deficient number, since it is larger than the sum of its proper divisors (1).

749046643 is an equidigital number, since it uses as much as digits as its factorization.

749046643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 749046643 is about 27368.7165026057. The cubic root of 749046643 is about 908.1751632642.

The spelling of 749046643 in words is "seven hundred forty-nine million, forty-six thousand, six hundred forty-three".