497951889 has 4 divisors (see below), whose sum is σ = 663935856. Its totient is φ = 331967924.

The previous prime is 497951849. The next prime is 497951893. The reversal of 497951889 is 988159794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 497951889 - 2²³ = 489563281 is a prime.

It is a super-3 number, since 3×497951889³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (497951849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82991979 + ... + 82991984.

It is an arithmetic number, because the mean of its divisors is an integer number (165983964).

Almost surely, 2^497951889 is an apocalyptic number.

It is an amenable number.

497951889 is a deficient number, since it is larger than the sum of its proper divisors (165983967).

497951889 is a wasteful number, since it uses less digits than its factorization.

497951889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165983966.

The product of its digits is 6531840, while the sum is 60.

The square root of 497951889 is about 22314.8356256550. The cubic root of 497951889 is about 792.6153183634.

The spelling of 497951889 in words is "four hundred ninety-seven million, nine hundred fifty-one thousand, eight hundred eighty-nine".