745409837 has 2 divisors, whose sum is σ = 745409838. Its totient is φ = 745409836.

The previous prime is 745409723. The next prime is 745409851. The reversal of 745409837 is 738904547.

745409837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383611396 + 361798441 = 19586^2 + 19021^2 .

It is a cyclic number.

It is not a de Polignac number, because 745409837 - 2¹⁰ = 745408813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745409791 and 745409800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745409857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372704918 + 372704919.

It is an arithmetic number, because the mean of its divisors is an integer number (372704919).

Almost surely, 2^745409837 is an apocalyptic number.

It is an amenable number.

745409837 is a deficient number, since it is larger than the sum of its proper divisors (1).

745409837 is an equidigital number, since it uses as much as digits as its factorization.

745409837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 745409837 is about 27302.1947286294. The cubic root of 745409837 is about 906.7029733485.

The spelling of 745409837 in words is "seven hundred forty-five million, four hundred nine thousand, eight hundred thirty-seven".