67221485 has 32 divisors (see below), whose sum is σ = 89413632. Its totient is φ = 48291840.

The previous prime is 67221463. The next prime is 67221493. The reversal of 67221485 is 58412276.

It is not a de Polignac number, because 67221485 - 2⁸ = 67221229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255464 + ... + 255726.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 2^67221485 is an apocalyptic number.

It is an amenable number.

67221485 is a deficient number, since it is larger than the sum of its proper divisors (22192147).

67221485 is a wasteful number, since it uses less digits than its factorization.

67221485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 26880, while the sum is 35.

The square root of 67221485 is about 8198.8709588577. The cubic root of 67221485 is about 406.6018660372.

The spelling of 67221485 in words is "sixty-seven million, two hundred twenty-one thousand, four hundred eighty-five".