706650390625 has 33 divisors (see below), whose sum is σ = 886608868561. Its totient is φ = 563218750000.

The previous prime is 706650390623. The next prime is 706650390661. The reversal of 706650390625 is 526093056607.

It is a happy number.

The square root of 706650390625 is 840625.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 16 ways, for example, as 630129553249 + 76520837376 = 793807^2 + 276624^2 .

It is not a de Polignac number, because 706650390625 - 2¹ = 706650390623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706650390623) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 2626952991 + ... + 2626953259.

Almost surely, 2^706650390625 is an apocalyptic number.

706650390625 is the 840625-th square number.

706650390625 is the 420313-rd centered octagonal number.

It is an amenable number.

706650390625 is a deficient number, since it is larger than the sum of its proper divisors (179958477936).

706650390625 is an frugal number, since it uses more digits than its factorization.

706650390625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 49.

Multiplying 706650390625 by its sum of digits (49), we get a square (34625869140625 = 5884375²).

The spelling of 706650390625 in words is "seven hundred six billion, six hundred fifty million, three hundred ninety thousand, six hundred twenty-five".