662890249 has 8 divisors (see below), whose sum is σ = 757937600. Its totient is φ = 567930096.

The previous prime is 662890243. The next prime is 662890289. The reversal of 662890249 is 942098266.

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 662890249 - 2¹¹ = 662888201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 662890199 and 662890208.

It is not an unprimeable number, because it can be changed into a prime (662890243) 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, 4599 + ... + 36700.

It is an arithmetic number, because the mean of its divisors is an integer number (94742200).

Almost surely, 2^662890249 is an apocalyptic number.

It is an amenable number.

662890249 is a deficient number, since it is larger than the sum of its proper divisors (95047351).

662890249 is a wasteful number, since it uses less digits than its factorization.

662890249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43599.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 662890249 is about 25746.6551031391. The cubic root of 662890249 is about 871.9278379424.

The spelling of 662890249 in words is "six hundred sixty-two million, eight hundred ninety thousand, two hundred forty-nine".