67960139 has 6 divisors (see below), whose sum is σ = 73590156. Its totient is φ = 62732280.

The previous prime is 67960129. The next prime is 67960171. The reversal of 67960139 is 93106976.

It is a happy number.

It is not a de Polignac number, because 67960139 - 2¹² = 67956043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67960096 and 67960105.

It is not an unprimeable number, because it can be changed into a prime (67960129) 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, 200897 + ... + 201234.

It is an arithmetic number, because the mean of its divisors is an integer number (12265026).

Almost surely, 2^67960139 is an apocalyptic number.

67960139 is a deficient number, since it is larger than the sum of its proper divisors (5630017).

67960139 is a wasteful number, since it uses less digits than its factorization.

67960139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402157 (or 402144 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 67960139 is about 8243.7939687986. The cubic root of 67960139 is about 408.0857402627.

The spelling of 67960139 in words is "sixty-seven million, nine hundred sixty thousand, one hundred thirty-nine".