67790061 has 8 divisors (see below), whose sum is σ = 100429760. Its totient is φ = 45193356.

The previous prime is 67790057. The next prime is 67790069. The reversal of 67790061 is 16009776.

It is not a de Polignac number, because 67790061 - 2² = 67790057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67789998 and 67790025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67790069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255345 + ... + 1255398.

It is an arithmetic number, because the mean of its divisors is an integer number (12553720).

Almost surely, 2^67790061 is an apocalyptic number.

It is an amenable number.

67790061 is a deficient number, since it is larger than the sum of its proper divisors (32639699).

67790061 is a wasteful number, since it uses less digits than its factorization.

67790061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510752 (or 2510746 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 67790061 is about 8233.4719893858. The cubic root of 67790061 is about 407.7450288430.

The spelling of 67790061 in words is "sixty-seven million, seven hundred ninety thousand, sixty-one".