67790648 has 8 divisors (see below), whose sum is σ = 127107480. Its totient is φ = 33895320.

The previous prime is 67790609. The next prime is 67790659. The reversal of 67790648 is 84609776.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×67790648³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4236908 + ... + 4236923.

It is an arithmetic number, because the mean of its divisors is an integer number (15888435).

Almost surely, 2^67790648 is an apocalyptic number.

It is an amenable number.

67790648 is a deficient number, since it is larger than the sum of its proper divisors (59316832).

67790648 is a wasteful number, since it uses less digits than its factorization.

67790648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473837 (or 8473833 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 67790648 is about 8233.5076364816. The cubic root of 67790648 is about 407.7462057395.

The spelling of 67790648 in words is "sixty-seven million, seven hundred ninety thousand, six hundred forty-eight".