491975710 has 16 divisors (see below), whose sum is σ = 885895056. Its totient is φ = 196715008.

The previous prime is 491975677. The next prime is 491975711. The reversal of 491975710 is 17579194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491975711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23529 + ... + 39211.

It is an arithmetic number, because the mean of its divisors is an integer number (55368441).

Almost surely, 2^491975710 is an apocalyptic number.

491975710 is a deficient number, since it is larger than the sum of its proper divisors (393919346).

491975710 is a wasteful number, since it uses less digits than its factorization.

491975710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18827.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 491975710 is about 22180.5254671750. The cubic root of 491975710 is about 789.4316854765.

The spelling of 491975710 in words is "four hundred ninety-one million, nine hundred seventy-five thousand, seven hundred ten".