67616648 has 16 divisors (see below), whose sum is σ = 138306960. Its totient is φ = 30734800.

The previous prime is 67616623. The next prime is 67616651. The reversal of 67616648 is 84661676.

It is a super-2 number, since 2×67616648² = 9144022173511808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 67616599 and 67616608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384098 + ... + 384273.

It is an arithmetic number, because the mean of its divisors is an integer number (8644185).

Almost surely, 2^67616648 is an apocalyptic number.

It is an amenable number.

67616648 is an abundant number, since it is smaller than the sum of its proper divisors (70690312).

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

67616648 is a wasteful number, since it uses less digits than its factorization.

67616648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768388 (or 768384 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 67616648 is about 8222.9342694685. The cubic root of 67616648 is about 407.3970492810.

The spelling of 67616648 in words is "sixty-seven million, six hundred sixteen thousand, six hundred forty-eight".