67980269 has 4 divisors (see below), whose sum is σ = 77691744. Its totient is φ = 58268796.

The previous prime is 67980257. The next prime is 67980281. The reversal of 67980269 is 96208976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (67980257) and next prime (67980281).

It is a cyclic number.

It is not a de Polignac number, because 67980269 - 2⁸ = 67980013 is a prime.

It is a super-4 number, since 4×67980269⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67980239) 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, 4855727 + ... + 4855740.

It is an arithmetic number, because the mean of its divisors is an integer number (19422936).

Almost surely, 2^67980269 is an apocalyptic number.

It is an amenable number.

67980269 is a deficient number, since it is larger than the sum of its proper divisors (9711475).

67980269 is an equidigital number, since it uses as much as digits as its factorization.

67980269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711474.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 67980269 is about 8245.0147968333. The cubic root of 67980269 is about 408.1260283645.

The spelling of 67980269 in words is "sixty-seven million, nine hundred eighty thousand, two hundred sixty-nine".