67249073 has 4 divisors (see below), whose sum is σ = 67661808. Its totient is φ = 66836340.

The previous prime is 67249069. The next prime is 67249087. The reversal of 67249073 is 37094276.

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 a cyclic number.

It is not a de Polignac number, because 67249073 - 2² = 67249069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67249003) 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, 206123 + ... + 206448.

It is an arithmetic number, because the mean of its divisors is an integer number (16915452).

Almost surely, 2^67249073 is an apocalyptic number.

It is an amenable number.

67249073 is a deficient number, since it is larger than the sum of its proper divisors (412735).

67249073 is a wasteful number, since it uses less digits than its factorization.

67249073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412734.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 67249073 is about 8200.5532130461. The cubic root of 67249073 is about 406.6574821748.

The spelling of 67249073 in words is "sixty-seven million, two hundred forty-nine thousand, seventy-three".