67997583 has 8 divisors (see below), whose sum is σ = 100737200. Its totient is φ = 45331704.

The previous prime is 67997533. The next prime is 67997609. The reversal of 67997583 is 38579976.

It is not a de Polignac number, because 67997583 - 2⁸ = 67997327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67997533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259188 + ... + 1259241.

It is an arithmetic number, because the mean of its divisors is an integer number (12592150).

Almost surely, 2^67997583 is an apocalyptic number.

67997583 is a deficient number, since it is larger than the sum of its proper divisors (32739617).

67997583 is a wasteful number, since it uses less digits than its factorization.

67997583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518438 (or 2518432 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 67997583 is about 8246.0646977816. The cubic root of 67997583 is about 408.1606741735.

The spelling of 67997583 in words is "sixty-seven million, nine hundred ninety-seven thousand, five hundred eighty-three".