662745477 has 8 divisors (see below), whose sum is σ = 883929664. Its totient is φ = 441695808.

The previous prime is 662745469. The next prime is 662745487. The reversal of 662745477 is 774547266.

It is a happy number.

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

It is not a de Polignac number, because 662745477 - 2³ = 662745469 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 (662745427) 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, 21508 + ... + 42285.

It is an arithmetic number, because the mean of its divisors is an integer number (110491208).

Almost surely, 2^662745477 is an apocalyptic number.

It is an amenable number.

662745477 is a deficient number, since it is larger than the sum of its proper divisors (221184187).

662745477 is a wasteful number, since it uses less digits than its factorization.

662745477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67259.

The product of its digits is 1975680, while the sum is 48.

The square root of 662745477 is about 25743.8434776162. The cubic root of 662745477 is about 871.8643583907.

The spelling of 662745477 in words is "six hundred sixty-two million, seven hundred forty-five thousand, four hundred seventy-seven".