497644061 has 4 divisors (see below), whose sum is σ = 497943900. Its totient is φ = 497344224.

The previous prime is 497644051. The next prime is 497644079. The reversal of 497644061 is 160446794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221087161 + 276556900 = 14869^2 + 16630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497644061 is a prime.

It is a super-2 number, since 2×497644061² = 495299222897143442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497644001) 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, 147416 + ... + 150753.

It is an arithmetic number, because the mean of its divisors is an integer number (124485975).

Almost surely, 2^497644061 is an apocalyptic number.

It is an amenable number.

497644061 is a deficient number, since it is larger than the sum of its proper divisors (299839).

497644061 is a wasteful number, since it uses less digits than its factorization.

497644061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299838.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 497644061 is about 22307.9371749160. The cubic root of 497644061 is about 792.4519562074.

The spelling of 497644061 in words is "four hundred ninety-seven million, six hundred forty-four thousand, sixty-one".