75685403 has 4 divisors (see below), whose sum is σ = 75706128. Its totient is φ = 75664680.

The previous prime is 75685399. The next prime is 75685409. The reversal of 75685403 is 30458657.

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

It is a cyclic number.

It is not a de Polignac number, because 75685403 - 2² = 75685399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75685409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263 + ... + 12728.

It is an arithmetic number, because the mean of its divisors is an integer number (18926532).

Almost surely, 2^75685403 is an apocalyptic number.

75685403 is a deficient number, since it is larger than the sum of its proper divisors (20725).

75685403 is a wasteful number, since it uses less digits than its factorization.

75685403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 75685403 is about 8699.7358005861. The cubic root of 75685403 is about 422.9970863475.

The spelling of 75685403 in words is "seventy-five million, six hundred eighty-five thousand, four hundred three".