68644627 has 6 divisors (see below), whose sum is σ = 71759492. Its totient is φ = 65659572.

The previous prime is 68644621. The next prime is 68644661. The reversal of 68644627 is 72644686.

It is not a de Polignac number, because 68644627 - 2¹⁵ = 68611859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68644621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64353 + ... + 65410.

Almost surely, 2^68644627 is an apocalyptic number.

68644627 is a deficient number, since it is larger than the sum of its proper divisors (3114865).

68644627 is a wasteful number, since it uses less digits than its factorization.

68644627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129809 (or 129786 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 68644627 is about 8285.2053082588. The cubic root of 68644627 is about 409.4512329100.

The spelling of 68644627 in words is "sixty-eight million, six hundred forty-four thousand, six hundred twenty-seven".