67007620 has 12 divisors (see below), whose sum is σ = 140716044. Its totient is φ = 26803040.

The previous prime is 67007617. The next prime is 67007627. The reversal of 67007620 is 2670076.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 47665216 = 4398^2 + 6904^2 .

It is a super-2 number, since 2×67007620² = 8980042276128800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67007627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675171 + ... + 1675210.

It is an arithmetic number, because the mean of its divisors is an integer number (11726337).

Almost surely, 2^67007620 is an apocalyptic number.

It is an amenable number.

67007620 is an abundant number, since it is smaller than the sum of its proper divisors (73708424).

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

67007620 is a wasteful number, since it uses less digits than its factorization.

67007620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350390 (or 3350388 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 67007620 is about 8185.8182242217. The cubic root of 67007620 is about 406.1702069716.

Adding to 67007620 its reverse (2670076), we get a palindrome (69677696).

The spelling of 67007620 in words is "sixty-seven million, seven thousand, six hundred twenty".