491954595 has 16 divisors (see below), whose sum is σ = 858684672. Its totient is φ = 238523360.

The previous prime is 491954581. The next prime is 491954597. The reversal of 491954595 is 595459194.

It is not a de Polignac number, because 491954595 - 2⁸ = 491954339 is a prime.

It is a super-2 number, since 2×491954595² = 484038647083228050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491954597) 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, 1490607 + ... + 1490936.

It is an arithmetic number, because the mean of its divisors is an integer number (53667792).

Almost surely, 2^491954595 is an apocalyptic number.

491954595 is a deficient number, since it is larger than the sum of its proper divisors (366730077).

491954595 is a wasteful number, since it uses less digits than its factorization.

491954595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981562.

The product of its digits is 1458000, while the sum is 51.

The square root of 491954595 is about 22180.0494814597. The cubic root of 491954595 is about 789.4203914985.

The spelling of 491954595 in words is "four hundred ninety-one million, nine hundred fifty-four thousand, five hundred ninety-five".