497020639 has 16 divisors (see below), whose sum is σ = 546958080. Its totient is φ = 449539200.

The previous prime is 497020637. The next prime is 497020649. The reversal of 497020639 is 936020794.

It is a cyclic number.

It is not a de Polignac number, because 497020639 - 2¹ = 497020637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497020631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413239 + ... + 414439.

It is an arithmetic number, because the mean of its divisors is an integer number (34184880).

Almost surely, 2^497020639 is an apocalyptic number.

497020639 is a deficient number, since it is larger than the sum of its proper divisors (49937441).

497020639 is a wasteful number, since it uses less digits than its factorization.

497020639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 497020639 is about 22293.9596976401. The cubic root of 497020639 is about 792.1209040459.

The spelling of 497020639 in words is "four hundred ninety-seven million, twenty thousand, six hundred thirty-nine".