67772845 has 16 divisors (see below), whose sum is σ = 94336128. Its totient is φ = 45777600.

The previous prime is 67772827. The next prime is 67772857. The reversal of 67772845 is 54827776.

It is not a de Polignac number, because 67772845 - 2⁵ = 67772813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67772795 and 67772804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12106 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (5896008).

Almost surely, 2^67772845 is an apocalyptic number.

It is an amenable number.

67772845 is a deficient number, since it is larger than the sum of its proper divisors (26563283).

67772845 is a wasteful number, since it uses less digits than its factorization.

67772845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28980.

The product of its digits is 658560, while the sum is 46.

The square root of 67772845 is about 8232.4264345331. The cubic root of 67772845 is about 407.7105088724.

The spelling of 67772845 in words is "sixty-seven million, seven hundred seventy-two thousand, eight hundred forty-five".