497436861 has 16 divisors (see below), whose sum is σ = 678555648. Its totient is φ = 323996400.

The previous prime is 497436829. The next prime is 497436871. The reversal of 497436861 is 168634794.

It is not a de Polignac number, because 497436861 - 2⁵ = 497436829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 497436861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497436811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86176 + ... + 91766.

It is an arithmetic number, because the mean of its divisors is an integer number (42409728).

Almost surely, 2^497436861 is an apocalyptic number.

It is an amenable number.

497436861 is a deficient number, since it is larger than the sum of its proper divisors (181118787).

497436861 is a wasteful number, since it uses less digits than its factorization.

497436861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272.

The product of its digits is 870912, while the sum is 48.

The square root of 497436861 is about 22303.2926044564. The cubic root of 497436861 is about 792.3419586866.

The spelling of 497436861 in words is "four hundred ninety-seven million, four hundred thirty-six thousand, eight hundred sixty-one".