708767847421 has 4 divisors (see below), whose sum is σ = 709127082972. Its totient is φ = 708408611872.

The previous prime is 708767847401. The next prime is 708767847443. The reversal of 708767847421 is 124748767807.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 250486236196 + 458281611225 = 500486^2 + 676965^2 .

It is a cyclic number.

It is not a de Polignac number, because 708767847421 - 2²⁵ = 708734292989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 708767847421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (708767847401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179614816 + ... + 179618761.

It is an arithmetic number, because the mean of its divisors is an integer number (177281770743).

Almost surely, 2^708767847421 is an apocalyptic number.

It is an amenable number.

708767847421 is a deficient number, since it is larger than the sum of its proper divisors (359235551).

708767847421 is a wasteful number, since it uses less digits than its factorization.

708767847421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359235550.

The product of its (nonzero) digits is 29503488, while the sum is 61.

The spelling of 708767847421 in words is "seven hundred eight billion, seven hundred sixty-seven million, eight hundred forty-seven thousand, four hundred twenty-one".