67764404 has 6 divisors (see below), whose sum is σ = 118587714. Its totient is φ = 33882200.

The previous prime is 67764401. The next prime is 67764413. The reversal of 67764404 is 40446776.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 23541904 = 6650^2 + 4852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67764401) 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 as a sum of consecutive naturals, namely, 8470547 + ... + 8470554.

It is an arithmetic number, because the mean of its divisors is an integer number (19764619).

Almost surely, 2^67764404 is an apocalyptic number.

It is an amenable number.

67764404 is a deficient number, since it is larger than the sum of its proper divisors (50823310).

67764404 is a wasteful number, since it uses less digits than its factorization.

67764404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16941105 (or 16941103 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 67764404 is about 8231.9137507629. The cubic root of 67764404 is about 407.6935816046.

The spelling of 67764404 in words is "sixty-seven million, seven hundred sixty-four thousand, four hundred four".