634749743 has 2 divisors, whose sum is σ = 634749744. Its totient is φ = 634749742.

The previous prime is 634749733. The next prime is 634749749. The reversal of 634749743 is 347947436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634749743 - 2⁶ = 634749679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634749749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317374871 + 317374872.

It is an arithmetic number, because the mean of its divisors is an integer number (317374872).

Almost surely, 2^634749743 is an apocalyptic number.

634749743 is a deficient number, since it is larger than the sum of its proper divisors (1).

634749743 is an equidigital number, since it uses as much as digits as its factorization.

634749743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 47.

The square root of 634749743 is about 25194.2402743167. The cubic root of 634749743 is about 859.4108742410.

The spelling of 634749743 in words is "six hundred thirty-four million, seven hundred forty-nine thousand, seven hundred forty-three".