67797765 has 48 divisors (see below), whose sum is σ = 135697536. Its totient is φ = 30672000.

The previous prime is 67797761. The next prime is 67797773. The reversal of 67797765 is 56779776.

It is not a de Polignac number, because 67797765 - 2² = 67797761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67797761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30750 + ... + 32880.

It is an arithmetic number, because the mean of its divisors is an integer number (2827032).

Almost surely, 2^67797765 is an apocalyptic number.

It is an amenable number.

67797765 is an abundant number, since it is smaller than the sum of its proper divisors (67899771).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67797765 is a wasteful number, since it uses less digits than its factorization.

67797765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2247 counting only the distinct ones).

The product of its digits is 3889620, while the sum is 54.

The square root of 67797765 is about 8233.9398224665. The cubic root of 67797765 is about 407.7604743162.

The spelling of 67797765 in words is "sixty-seven million, seven hundred ninety-seven thousand, seven hundred sixty-five".