67712049 has 6 divisors (see below), whose sum is σ = 97806306. Its totient is φ = 45141360.

The previous prime is 67712041. The next prime is 67712077. The reversal of 67712049 is 94021776.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63489024 + 4223025 = 7968^2 + 2055^2 .

It is not a de Polignac number, because 67712049 - 2³ = 67712041 is a prime.

It is a super-3 number, since 3×67712049³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (67712041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3761772 + ... + 3761789.

It is an arithmetic number, because the mean of its divisors is an integer number (16301051).

Almost surely, 2^67712049 is an apocalyptic number.

It is an amenable number.

67712049 is a deficient number, since it is larger than the sum of its proper divisors (30094257).

67712049 is a wasteful number, since it uses less digits than its factorization.

67712049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523567 (or 7523564 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 67712049 is about 8228.7331345718. The cubic root of 67712049 is about 407.5885594219.

The spelling of 67712049 in words is "sixty-seven million, seven hundred twelve thousand, forty-nine".