709977946 has 4 divisors (see below), whose sum is σ = 1064966922. Its totient is φ = 354988972.

The previous prime is 709977943. The next prime is 709977967. The reversal of 709977946 is 649779907.

709977946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 669515625 + 40462321 = 25875^2 + 6361^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (709977943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177494485 + ... + 177494488.

Almost surely, 2^709977946 is an apocalyptic number.

709977946 is a deficient number, since it is larger than the sum of its proper divisors (354988976).

709977946 is a wasteful number, since it uses less digits than its factorization.

709977946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354988975.

The product of its (nonzero) digits is 6001128, while the sum is 58.

The square root of 709977946 is about 26645.4113497990. The cubic root of 709977946 is about 892.1029034293.

The spelling of 709977946 in words is "seven hundred nine million, nine hundred seventy-seven thousand, nine hundred forty-six".