67894489 has 4 divisors (see below), whose sum is σ = 73117156. Its totient is φ = 62671824.

The previous prime is 67894469. The next prime is 67894499. The reversal of 67894489 is 98449876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43560000 + 24334489 = 6600^2 + 4933^2 .

It is a cyclic number.

It is not a de Polignac number, because 67894489 - 2⁵ = 67894457 is a prime.

It is a super-2 number, since 2×67894489² = 9219323273142242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67894469) 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, 2611314 + ... + 2611339.

It is an arithmetic number, because the mean of its divisors is an integer number (18279289).

Almost surely, 2^67894489 is an apocalyptic number.

It is an amenable number.

67894489 is a deficient number, since it is larger than the sum of its proper divisors (5222667).

67894489 is a wasteful number, since it uses less digits than its factorization.

67894489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222666.

The product of its digits is 3483648, while the sum is 55.

The square root of 67894489 is about 8239.8112235657. The cubic root of 67894489 is about 407.9542933067.

The spelling of 67894489 in words is "sixty-seven million, eight hundred ninety-four thousand, four hundred eighty-nine".