67616769 has 32 divisors (see below), whose sum is σ = 106596864. Its totient is φ = 37658880.

The previous prime is 67616753. The next prime is 67616807. The reversal of 67616769 is 96761676.

It is not a de Polignac number, because 67616769 - 2⁴ = 67616753 is a prime.

It is a super-2 number, since 2×67616769² = 9144054899998722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (67616569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22722 + ... + 25524.

It is an arithmetic number, because the mean of its divisors is an integer number (3331152).

It is a Proth number, since it is equal to 4127 ⋅ 2¹⁴ + 1 and 4127 < 2¹⁴.

Almost surely, 2^67616769 is an apocalyptic number.

It is an amenable number.

67616769 is a deficient number, since it is larger than the sum of its proper divisors (38980095).

67616769 is a wasteful number, since it uses less digits than its factorization.

67616769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its digits is 571536, while the sum is 48.

The square root of 67616769 is about 8222.9416269362. The cubic root of 67616769 is about 407.3972922932.

It can be divided in two parts, 6761 and 6769, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 67616769 in words is "sixty-seven million, six hundred sixteen thousand, seven hundred sixty-nine".