491002927 has 2 divisors, whose sum is σ = 491002928. Its totient is φ = 491002926.

The previous prime is 491002909. The next prime is 491002979. The reversal of 491002927 is 729200194.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491002927 - 2²⁷ = 356785199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 491002892 and 491002901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491002027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245501463 + 245501464.

It is an arithmetic number, because the mean of its divisors is an integer number (245501464).

Almost surely, 2^491002927 is an apocalyptic number.

491002927 is a deficient number, since it is larger than the sum of its proper divisors (1).

491002927 is an equidigital number, since it uses as much as digits as its factorization.

491002927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 491002927 is about 22158.5858528923. The cubic root of 491002927 is about 788.9110280422.

The spelling of 491002927 in words is "four hundred ninety-one million, two thousand, nine hundred twenty-seven".