497772609 has 4 divisors (see below), whose sum is σ = 663696816. Its totient is φ = 331848404.

The previous prime is 497772599. The next prime is 497772641. The reversal of 497772609 is 906277794.

It is a happy number.

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 497772609 - 2¹³ = 497764417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (497772109) 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, 82962099 + ... + 82962104.

It is an arithmetic number, because the mean of its divisors is an integer number (165924204).

Almost surely, 2^497772609 is an apocalyptic number.

It is an amenable number.

497772609 is a deficient number, since it is larger than the sum of its proper divisors (165924207).

497772609 is a wasteful number, since it uses less digits than its factorization.

497772609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165924206.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 497772609 is about 22310.8182055253. The cubic root of 497772609 is about 792.5201839174.

The spelling of 497772609 in words is "four hundred ninety-seven million, seven hundred seventy-two thousand, six hundred nine".