708069649 has 8 divisors (see below), whose sum is σ = 825737600. Its totient is φ = 606916548.

The previous prime is 708069641. The next prime is 708069673. The reversal of 708069649 is 946960807.

It is not a de Polignac number, because 708069649 - 2³ = 708069641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (708069641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031829 + ... + 1032514.

It is an arithmetic number, because the mean of its divisors is an integer number (103217200).

Almost surely, 2^708069649 is an apocalyptic number.

It is an amenable number.

708069649 is a deficient number, since it is larger than the sum of its proper divisors (117667951).

708069649 is an equidigital number, since it uses as much as digits as its factorization.

708069649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064364 (or 2064350 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 708069649 is about 26609.5781439691. The cubic root of 708069649 is about 891.3029138734.

It can be divided in two parts, 7080 and 69649, that added together give a square (76729 = 277²).

The spelling of 708069649 in words is "seven hundred eight million, sixty-nine thousand, six hundred forty-nine".