497903691 has 8 divisors (see below), whose sum is σ = 666218560. Its totient is φ = 330762312.

The previous prime is 497903689. The next prime is 497903717. The reversal of 497903691 is 196309794.

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

It is not a de Polignac number, because 497903691 - 2¹ = 497903689 is a prime.

It is a super-2 number, since 2×497903691² = 495816171022846962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 497903691.

It is not an unprimeable number, because it can be changed into a prime (497903641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292381 + ... + 294078.

It is an arithmetic number, because the mean of its divisors is an integer number (83277320).

Almost surely, 2^497903691 is an apocalyptic number.

497903691 is a deficient number, since it is larger than the sum of its proper divisors (168314869).

497903691 is a wasteful number, since it uses less digits than its factorization.

497903691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586745.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 497903691 is about 22313.7556453413. The cubic root of 497903691 is about 792.5897444699.

The spelling of 497903691 in words is "four hundred ninety-seven million, nine hundred three thousand, six hundred ninety-one".