497372761 has 4 divisors (see below), whose sum is σ = 498370000. Its totient is φ = 496375524.

The previous prime is 497372749. The next prime is 497372789. The reversal of 497372761 is 167273794.

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, and also an emirpimes, since its reverse is a distinct semiprime: 167273794 = 2 ⋅83636897.

It is a cyclic number.

It is not a de Polignac number, because 497372761 - 2²¹ = 495275609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497372741) 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, 497871 + ... + 498868.

It is an arithmetic number, because the mean of its divisors is an integer number (124592500).

Almost surely, 2^497372761 is an apocalyptic number.

It is an amenable number.

497372761 is a deficient number, since it is larger than the sum of its proper divisors (997239).

497372761 is an equidigital number, since it uses as much as digits as its factorization.

497372761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997238.

The product of its digits is 444528, while the sum is 46.

The square root of 497372761 is about 22301.8555506039. The cubic root of 497372761 is about 792.3079233444.

The spelling of 497372761 in words is "four hundred ninety-seven million, three hundred seventy-two thousand, seven hundred sixty-one".