68884137 has 12 divisors (see below), whose sum is σ = 113713600. Its totient is φ = 39362328.

The previous prime is 68884087. The next prime is 68884147. The reversal of 68884137 is 73148886.

It is not a de Polignac number, because 68884137 - 2¹¹ = 68882089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68884092 and 68884101.

It is not an unprimeable number, because it can be changed into a prime (68884147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546637 + ... + 546762.

Almost surely, 2^68884137 is an apocalyptic number.

It is an amenable number.

68884137 is a deficient number, since it is larger than the sum of its proper divisors (44829463).

68884137 is a wasteful number, since it uses less digits than its factorization.

68884137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093412 (or 1093409 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 68884137 is about 8299.6467997138. The cubic root of 68884137 is about 409.9268896012.

It can be divided in two parts, 6888 and 4137, that added together give a square (11025 = 105²).

The spelling of 68884137 in words is "sixty-eight million, eight hundred eighty-four thousand, one hundred thirty-seven".