68649455 has 8 divisors (see below), whose sum is σ = 94147872. Its totient is φ = 47073888.

The previous prime is 68649443. The next prime is 68649463. The reversal of 68649455 is 55494686.

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 68649455 - 2²⁴ = 51872239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980672 + ... + 980741.

It is an arithmetic number, because the mean of its divisors is an integer number (11768484).

Almost surely, 2^68649455 is an apocalyptic number.

68649455 is a deficient number, since it is larger than the sum of its proper divisors (25498417).

68649455 is a wasteful number, since it uses less digits than its factorization.

68649455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961425.

The product of its digits is 1036800, while the sum is 47.

The square root of 68649455 is about 8285.4966658614. The cubic root of 68649455 is about 409.4608320308.

The spelling of 68649455 in words is "sixty-eight million, six hundred forty-nine thousand, four hundred fifty-five".