662993489 has 8 divisors (see below), whose sum is σ = 707354208. Its totient is φ = 619228480.

The previous prime is 662993477. The next prime is 662993501. The reversal of 662993489 is 984399266.

It is an interprime number because it is at equal distance from previous prime (662993477) and next prime (662993501).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 662993489 - 2⁴ = 662993473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (662993449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146627 + ... + 151080.

It is an arithmetic number, because the mean of its divisors is an integer number (88419276).

Almost surely, 2^662993489 is an apocalyptic number.

It is an amenable number.

662993489 is a deficient number, since it is larger than the sum of its proper divisors (44360719).

662993489 is a wasteful number, since it uses less digits than its factorization.

662993489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297855.

The product of its digits is 5038848, while the sum is 56.

The square root of 662993489 is about 25748.6599457137. The cubic root of 662993489 is about 871.9731009188.

The spelling of 662993489 in words is "six hundred sixty-two million, nine hundred ninety-three thousand, four hundred eighty-nine".