662860949 has 4 divisors (see below), whose sum is σ = 672754464. Its totient is φ = 652967436.

The previous prime is 662860927. The next prime is 662860963. The reversal of 662860949 is 949068266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662860949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662860897 and 662860906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662860249) 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, 4946657 + ... + 4946790.

It is an arithmetic number, because the mean of its divisors is an integer number (168188616).

Almost surely, 2^662860949 is an apocalyptic number.

It is an amenable number.

662860949 is a deficient number, since it is larger than the sum of its proper divisors (9893515).

662860949 is an equidigital number, since it uses as much as digits as its factorization.

662860949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893514.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 662860949 is about 25746.0860908993. The cubic root of 662860949 is about 871.9149912396.

The spelling of 662860949 in words is "six hundred sixty-two million, eight hundred sixty thousand, nine hundred forty-nine".