709900641 has 6 divisors (see below), whose sum is σ = 1025412050. Its totient is φ = 473267088.

The previous prime is 709900627. The next prime is 709900649. The reversal of 709900641 is 146009907.

709900641 is a `hidden beast` number, since 7 + 0 + 9 + 9 + 0 + 0 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 624800016 + 85100625 = 24996^2 + 9225^2 .

It is a de Polignac number, because none of the positive numbers 2^k-709900641 is a prime.

It is a super-3 number, since 3×709900641³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 709900596 and 709900605.

It is not an unprimeable number, because it can be changed into a prime (709900649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39438916 + ... + 39438933.

Almost surely, 2^709900641 is an apocalyptic number.

It is an amenable number.

709900641 is a deficient number, since it is larger than the sum of its proper divisors (315511409).

709900641 is a wasteful number, since it uses less digits than its factorization.

709900641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78877855 (or 78877852 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 709900641 is about 26643.9606853035. The cubic root of 709900641 is about 892.0705237765.

The spelling of 709900641 in words is "seven hundred nine million, nine hundred thousand, six hundred forty-one".