67530393 has 12 divisors (see below), whose sum is σ = 111478848. Its totient is φ = 38588760.

The previous prime is 67530367. The next prime is 67530401. The reversal of 67530393 is 39303576.

It is not a de Polignac number, because 67530393 - 2⁵ = 67530361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67530343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535893 + ... + 536018.

It is an arithmetic number, because the mean of its divisors is an integer number (9289904).

Almost surely, 2^67530393 is an apocalyptic number.

67530393 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

67530393 is a deficient number, since it is larger than the sum of its proper divisors (43948455).

67530393 is a wasteful number, since it uses less digits than its factorization.

67530393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071924 (or 1071921 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The square root of 67530393 is about 8217.6878134911. The cubic root of 67530393 is about 407.2237439081.

The spelling of 67530393 in words is "sixty-seven million, five hundred thirty thousand, three hundred ninety-three".