67609965 has 8 divisors (see below), whose sum is σ = 108175968. Its totient is φ = 36058640.

The previous prime is 67609939. The next prime is 67609973. The reversal of 67609965 is 56990676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67609965 - 2⁷ = 67609837 is a prime.

It is a super-2 number, since 2×67609965² = 9142214734602450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2253651 + ... + 2253680.

It is an arithmetic number, because the mean of its divisors is an integer number (13521996).

Almost surely, 2^67609965 is an apocalyptic number.

It is an amenable number.

67609965 is a deficient number, since it is larger than the sum of its proper divisors (40566003).

67609965 is a wasteful number, since it uses less digits than its factorization.

67609965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507339.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 67609965 is about 8222.5278959697. The cubic root of 67609965 is about 407.3836269249.

The spelling of 67609965 in words is "sixty-seven million, six hundred nine thousand, nine hundred sixty-five".