655464386 has 4 divisors (see below), whose sum is σ = 983196582. Its totient is φ = 327732192.

The previous prime is 655464379. The next prime is 655464391. The reversal of 655464386 is 683464556.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 600985225 + 54479161 = 24515^2 + 7381^2 .

It is a super-3 number, since 3×655464386³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 655464386.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163866095 + ... + 163866098.

Almost surely, 2^655464386 is an apocalyptic number.

655464386 is a deficient number, since it is larger than the sum of its proper divisors (327732196).

655464386 is a wasteful number, since it uses less digits than its factorization.

655464386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327732195.

The product of its digits is 2073600, while the sum is 47.

The square root of 655464386 is about 25602.0387078842. The cubic root of 655464386 is about 868.6597525699.

The spelling of 655464386 in words is "six hundred fifty-five million, four hundred sixty-four thousand, three hundred eighty-six".