492737257 has 4 divisors (see below), whose sum is σ = 514160640. Its totient is φ = 471313876.

The previous prime is 492737233. The next prime is 492737309. The reversal of 492737257 is 752737294.

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 492737257 - 2¹¹ = 492735209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492737207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10711657 + ... + 10711702.

It is an arithmetic number, because the mean of its divisors is an integer number (128540160).

Almost surely, 2^492737257 is an apocalyptic number.

It is an amenable number.

492737257 is a deficient number, since it is larger than the sum of its proper divisors (21423383).

492737257 is a wasteful number, since it uses less digits than its factorization.

492737257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21423382.

The product of its digits is 740880, while the sum is 46.

The square root of 492737257 is about 22197.6858478536. The cubic root of 492737257 is about 789.8388054387.

The spelling of 492737257 in words is "four hundred ninety-two million, seven hundred thirty-seven thousand, two hundred fifty-seven".