497897902 has 4 divisors (see below), whose sum is σ = 746846856. Its totient is φ = 248948950.

The previous prime is 497897821. The next prime is 497897909. The reversal of 497897902 is 209798794.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497897909) 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 as a sum of consecutive naturals, namely, 124474474 + ... + 124474477.

It is an arithmetic number, because the mean of its divisors is an integer number (186711714).

Almost surely, 2^497897902 is an apocalyptic number.

497897902 is a deficient number, since it is larger than the sum of its proper divisors (248948954).

497897902 is a wasteful number, since it uses less digits than its factorization.

497897902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248948953.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The square root of 497897902 is about 22313.6259267740. The cubic root of 497897902 is about 792.5866727113.

The spelling of 497897902 in words is "four hundred ninety-seven million, eight hundred ninety-seven thousand, nine hundred two".