716541909 has 4 divisors (see below), whose sum is σ = 955389216. Its totient is φ = 477694604.

The previous prime is 716541899. The next prime is 716541919. The reversal of 716541909 is 909145617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (716541899) and next prime (716541919).

It is a cyclic number.

It is not a de Polignac number, because 716541909 - 2⁴ = 716541893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716541919) 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, 119423649 + ... + 119423654.

It is an arithmetic number, because the mean of its divisors is an integer number (238847304).

Almost surely, 2^716541909 is an apocalyptic number.

It is an amenable number.

716541909 is a deficient number, since it is larger than the sum of its proper divisors (238847307).

716541909 is a wasteful number, since it uses less digits than its factorization.

716541909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238847306.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 716541909 is about 26768.3004503461. The cubic root of 716541909 is about 894.8437287368.

The spelling of 716541909 in words is "seven hundred sixteen million, five hundred forty-one thousand, nine hundred nine".