709977379 has 4 divisors (see below), whose sum is σ = 717006960. Its totient is φ = 702947800.

The previous prime is 709977319. The next prime is 709977397. The reversal of 709977379 is 973779907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973779907 = 17 ⋅57281171.

It is a cyclic number.

It is not a de Polignac number, because 709977379 - 2⁹ = 709976867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709977319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3514639 + ... + 3514840.

It is an arithmetic number, because the mean of its divisors is an integer number (179251740).

Almost surely, 2^709977379 is an apocalyptic number.

709977379 is a deficient number, since it is larger than the sum of its proper divisors (7029581).

709977379 is a wasteful number, since it uses less digits than its factorization.

709977379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029580.

The product of its (nonzero) digits is 5250987, while the sum is 58.

The square root of 709977379 is about 26645.4007100663. The cubic root of 709977379 is about 892.1026659465.

The spelling of 709977379 in words is "seven hundred nine million, nine hundred seventy-seven thousand, three hundred seventy-nine".