497780901 has 12 divisors (see below), whose sum is σ = 734315712. Its totient is φ = 324792936.

The previous prime is 497780891. The next prime is 497780917. The reversal of 497780901 is 109087794.

497780901 is a `hidden beast` number, since 497 + 78 + 0 + 90 + 1 = 666.

It is not a de Polignac number, because 497780901 - 2⁶ = 497780837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497780971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587971 + ... + 588816.

It is an arithmetic number, because the mean of its divisors is an integer number (61192976).

Almost surely, 2^497780901 is an apocalyptic number.

It is an amenable number.

497780901 is a deficient number, since it is larger than the sum of its proper divisors (236534811).

497780901 is a wasteful number, since it uses less digits than its factorization.

497780901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176840 (or 1176837 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 497780901 is about 22311.0040338843. The cubic root of 497780901 is about 792.5245845485.

The spelling of 497780901 in words is "four hundred ninety-seven million, seven hundred eighty thousand, nine hundred one".