490866723 has 40 divisors (see below), whose sum is σ = 750393600. Its totient is φ = 319690800.

The previous prime is 490866707. The next prime is 490866749. The reversal of 490866723 is 327668094.

490866723 is a `hidden beast` number, since 490 + 86 + 67 + 23 = 666.

It is not a de Polignac number, because 490866723 - 2⁴ = 490866707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490866703) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 819178 + ... + 819776.

It is an arithmetic number, because the mean of its divisors is an integer number (18759840).

Almost surely, 2^490866723 is an apocalyptic number.

490866723 is a deficient number, since it is larger than the sum of its proper divisors (259526877).

490866723 is a wasteful number, since it uses less digits than its factorization.

490866723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 490866723 is about 22155.5122486482. The cubic root of 490866723 is about 788.8380734363.

It can be divided in two parts, 4908 and 66723, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 490866723 in words is "four hundred ninety million, eight hundred sixty-six thousand, seven hundred twenty-three".