662696487 has 12 divisors (see below), whose sum is σ = 990236520. Its totient is φ = 426563088.

The previous prime is 662696483. The next prime is 662696491. The reversal of 662696487 is 784696266.

662696487 is a `hidden beast` number, since 6 + 626 + 9 + 6 + 4 + 8 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (662696483) and next prime (662696491).

It is not a de Polignac number, because 662696487 - 2² = 662696483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662696483) 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, 1269273 + ... + 1269794.

It is an arithmetic number, because the mean of its divisors is an integer number (82519710).

Almost surely, 2^662696487 is an apocalyptic number.

662696487 is a deficient number, since it is larger than the sum of its proper divisors (327540033).

662696487 is a wasteful number, since it uses less digits than its factorization.

662696487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539102 (or 2539099 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 662696487 is about 25742.8919704061. The cubic root of 662696487 is about 871.8428751874.

The spelling of 662696487 in words is "six hundred sixty-two million, six hundred ninety-six thousand, four hundred eighty-seven".