492097491 has 16 divisors (see below), whose sum is σ = 754173600. Its totient is φ = 316751904.

The previous prime is 492097471. The next prime is 492097493. The reversal of 492097491 is 194790294.

It is a happy number.

492097491 is a `hidden beast` number, since 492 + 0 + 9 + 74 + 91 = 666.

It is not a de Polignac number, because 492097491 - 2⁶ = 492097427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (492097493) 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, 313456 + ... + 315021.

It is an arithmetic number, because the mean of its divisors is an integer number (47135850).

Almost surely, 2^492097491 is an apocalyptic number.

492097491 is a deficient number, since it is larger than the sum of its proper divisors (262076109).

492097491 is a wasteful number, since it uses less digits than its factorization.

492097491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628515 (or 628509 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 492097491 is about 22183.2705208227. The cubic root of 492097491 is about 789.4968173158.

The spelling of 492097491 in words is "four hundred ninety-two million, ninety-seven thousand, four hundred ninety-one".