499977487 has 4 divisors (see below), whose sum is σ = 517218120. Its totient is φ = 482736856.

The previous prime is 499977481. The next prime is 499977523. The reversal of 499977487 is 784779994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784779994 = 2 ⋅392389997.

It is a cyclic number.

It is not a de Polignac number, because 499977487 - 2¹¹ = 499975439 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 (499977481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8620273 + ... + 8620330.

It is an arithmetic number, because the mean of its divisors is an integer number (129304530).

Almost surely, 2^499977487 is an apocalyptic number.

499977487 is a deficient number, since it is larger than the sum of its proper divisors (17240633).

499977487 is a wasteful number, since it uses less digits than its factorization.

499977487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17240632.

The product of its digits is 32006016, while the sum is 64.

The square root of 499977487 is about 22360.1763633474. The cubic root of 499977487 is about 793.6886134187.

The spelling of 499977487 in words is "four hundred ninety-nine million, nine hundred seventy-seven thousand, four hundred eighty-seven".