497729690 has 8 divisors (see below), whose sum is σ = 895913460. Its totient is φ = 199091872.

The previous prime is 497729677. The next prime is 497729699. The reversal of 497729690 is 96927794.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 476505241 + 21224449 = 21829^2 + 4607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×497729690² = 495469688614992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (497729699) 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, 24886475 + ... + 24886494.

Almost surely, 2^497729690 is an apocalyptic number.

497729690 is a deficient number, since it is larger than the sum of its proper divisors (398183770).

497729690 is a wasteful number, since it uses less digits than its factorization.

497729690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49772976.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 497729690 is about 22309.8563419848. The cubic root of 497729690 is about 792.4974056777.

The spelling of 497729690 in words is "four hundred ninety-seven million, seven hundred twenty-nine thousand, six hundred ninety".