745338739 has 2 divisors, whose sum is σ = 745338740. Its totient is φ = 745338738.

The previous prime is 745338733. The next prime is 745338749. The reversal of 745338739 is 937833547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745338739 - 2⁹ = 745338227 is a prime.

It is a super-2 number, since 2×745338739² = 1111059671708220242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 745338692 and 745338701.

It is not a weakly prime, because it can be changed into another prime (745338733) 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, 372669369 + 372669370.

It is an arithmetic number, because the mean of its divisors is an integer number (372669370).

Almost surely, 2^745338739 is an apocalyptic number.

745338739 is a deficient number, since it is larger than the sum of its proper divisors (1).

745338739 is an equidigital number, since it uses as much as digits as its factorization.

745338739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 49.

The square root of 745338739 is about 27300.8926410841. The cubic root of 745338739 is about 906.6741449937.

The spelling of 745338739 in words is "seven hundred forty-five million, three hundred thirty-eight thousand, seven hundred thirty-nine".