67620417 has 8 divisors (see below), whose sum is σ = 90213696. Its totient is φ = 45053712.

The previous prime is 67620403. The next prime is 67620461. The reversal of 67620417 is 71402676.

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

It is not a de Polignac number, because 67620417 - 2⁴ = 67620401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67620617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (11276712).

Almost surely, 2^67620417 is an apocalyptic number.

It is an amenable number.

67620417 is a deficient number, since it is larger than the sum of its proper divisors (22593279).

67620417 is a wasteful number, since it uses less digits than its factorization.

67620417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 67620417 is about 8223.1634423742. The cubic root of 67620417 is about 407.4046186740.

The spelling of 67620417 in words is "sixty-seven million, six hundred twenty thousand, four hundred seventeen".