67520903 has 4 divisors (see below), whose sum is σ = 69849240. Its totient is φ = 65192568.

The previous prime is 67520897. The next prime is 67520909. The reversal of 67520903 is 30902576.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (67520897) and next prime (67520909).

It is a cyclic number.

It is not a de Polignac number, because 67520903 - 2¹² = 67516807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67520903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67520909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164125 + ... + 1164182.

It is an arithmetic number, because the mean of its divisors is an integer number (17462310).

Almost surely, 2^67520903 is an apocalyptic number.

67520903 is a deficient number, since it is larger than the sum of its proper divisors (2328337).

67520903 is a wasteful number, since it uses less digits than its factorization.

67520903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328336.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 67520903 is about 8217.1103801762. The cubic root of 67520903 is about 407.2046673896.

The spelling of 67520903 in words is "sixty-seven million, five hundred twenty thousand, nine hundred three".