67026969 has 9 divisors (see below), whose sum is σ = 96852223. Its totient is φ = 44668272.

The previous prime is 67026961. The next prime is 67026977. The reversal of 67026969 is 96962076.

The square root of 67026969 is 8187.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (67026961) and next prime (67026977).

It can be written as a sum of positive squares in only one way, i.e., 64593369 + 2433600 = 8037^2 + 1560^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 67026969 - 2³ = 67026961 is a prime.

It is a super-2 number, since 2×67026969² = 8985229146653922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67026961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23197 + ... + 25925.

Almost surely, 2^67026969 is an apocalyptic number.

67026969 is the 8187-th square number.

67026969 is the 4094-th centered octagonal number.

It is an amenable number.

67026969 is a deficient number, since it is larger than the sum of its proper divisors (29825254).

67026969 is an frugal number, since it uses more digits than its factorization.

67026969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The cubic root of 67026969 is about 406.2092982023.

The spelling of 67026969 in words is "sixty-seven million, twenty-six thousand, nine hundred sixty-nine".