691007041 has 16 divisors (see below), whose sum is σ = 761616000. Its totient is φ = 624008448.

The previous prime is 691007021. The next prime is 691007047. The reversal of 691007041 is 140700196.

It is a cyclic number.

It is not a de Polignac number, because 691007041 - 2²¹ = 688909889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (691007047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76060 + ... + 84658.

It is an arithmetic number, because the mean of its divisors is an integer number (47601000).

Almost surely, 2^691007041 is an apocalyptic number.

It is an amenable number.

691007041 is a deficient number, since it is larger than the sum of its proper divisors (70608959).

691007041 is a wasteful number, since it uses less digits than its factorization.

691007041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8808.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 691007041 is about 26287.0127819804. The cubic root of 691007041 is about 884.0852757392.

The spelling of 691007041 in words is "six hundred ninety-one million, seven thousand, forty-one".