709149739 has 2 divisors, whose sum is σ = 709149740. Its totient is φ = 709149738.

The previous prime is 709149719. The next prime is 709149757. The reversal of 709149739 is 937941907.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 709149739 - 2¹³ = 709141547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 709149692 and 709149701.

It is not a weakly prime, because it can be changed into another prime (709149719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354574869 + 354574870.

It is an arithmetic number, because the mean of its divisors is an integer number (354574870).

Almost surely, 2^709149739 is an apocalyptic number.

709149739 is a deficient number, since it is larger than the sum of its proper divisors (1).

709149739 is an equidigital number, since it uses as much as digits as its factorization.

709149739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 709149739 is about 26629.8655460368. The cubic root of 709149739 is about 891.7558816878.

The spelling of 709149739 in words is "seven hundred nine million, one hundred forty-nine thousand, seven hundred thirty-nine".