67849601 has 16 divisors (see below), whose sum is σ = 74241360. Its totient is φ = 61747200.

The previous prime is 67849583. The next prime is 67849603. The reversal of 67849601 is 10694876.

67849601 = 5824² + 5825².

It can be written as a sum of positive squares in 8 ways, for example, as 13104400 + 54745201 = 3620^2 + 7399^2 .

It is a cyclic number.

It is not a de Polignac number, because 67849601 - 2¹⁰ = 67848577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67849603) 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, 169001 + ... + 169401.

It is an arithmetic number, because the mean of its divisors is an integer number (4640085).

Almost surely, 2^67849601 is an apocalyptic number.

67849601 is the 5825-th centered square number.

It is an amenable number.

67849601 is a deficient number, since it is larger than the sum of its proper divisors (6391759).

67849601 is a wasteful number, since it uses less digits than its factorization.

67849601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 67849601 is about 8237.0869243926. The cubic root of 67849601 is about 407.8643680431.

The spelling of 67849601 in words is "sixty-seven million, eight hundred forty-nine thousand, six hundred one".