68521467 has 16 divisors (see below), whose sum is σ = 109909760. Its totient is φ = 37094112.

The previous prime is 68521463. The next prime is 68521477. The reversal of 68521467 is 76412586.

It is not a de Polignac number, because 68521467 - 2² = 68521463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68521463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85468 + ... + 86265.

It is an arithmetic number, because the mean of its divisors is an integer number (6869360).

Almost surely, 2^68521467 is an apocalyptic number.

68521467 is a deficient number, since it is larger than the sum of its proper divisors (41388293).

68521467 is a wasteful number, since it uses less digits than its factorization.

68521467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171762.

The product of its digits is 80640, while the sum is 39.

The square root of 68521467 is about 8277.7694459317. The cubic root of 68521467 is about 409.2062115348.

The spelling of 68521467 in words is "sixty-eight million, five hundred twenty-one thousand, four hundred sixty-seven".