67212489 has 16 divisors (see below), whose sum is σ = 92977920. Its totient is φ = 43155840.

The previous prime is 67212479. The next prime is 67212493. The reversal of 67212489 is 98421276.

It is not a de Polignac number, because 67212489 - 2⁴ = 67212473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67212419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6259 + ... + 13175.

It is an arithmetic number, because the mean of its divisors is an integer number (5811120).

Almost surely, 2^67212489 is an apocalyptic number.

It is an amenable number.

67212489 is a deficient number, since it is larger than the sum of its proper divisors (25765431).

67212489 is a wasteful number, since it uses less digits than its factorization.

67212489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040.

The product of its digits is 48384, while the sum is 39.

The square root of 67212489 is about 8198.3223283791. The cubic root of 67212489 is about 406.5837272256.

The spelling of 67212489 in words is "sixty-seven million, two hundred twelve thousand, four hundred eighty-nine".