662557463 has 4 divisors (see below), whose sum is σ = 664210128. Its totient is φ = 660904800.

The previous prime is 662557457. The next prime is 662557477. The reversal of 662557463 is 364755266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364755266 = 2 ⋅182377633.

It is a cyclic number.

It is not a de Polignac number, because 662557463 - 2²² = 658363159 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 (662557163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825731 + ... + 826532.

It is an arithmetic number, because the mean of its divisors is an integer number (166052532).

Almost surely, 2^662557463 is an apocalyptic number.

662557463 is a deficient number, since it is larger than the sum of its proper divisors (1652665).

662557463 is a wasteful number, since it uses less digits than its factorization.

662557463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652664.

The product of its digits is 907200, while the sum is 44.

The square root of 662557463 is about 25740.1915882536. The cubic root of 662557463 is about 871.7819043091.

The spelling of 662557463 in words is "six hundred sixty-two million, five hundred fifty-seven thousand, four hundred sixty-three".