75497863 has 4 divisors (see below), whose sum is σ = 86283280. Its totient is φ = 64712448.

The previous prime is 75497857. The next prime is 75497893. The reversal of 75497863 is 36879457.

It is a happy number.

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 75497863 - 2⁹ = 75497351 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 (75497843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5392698 + ... + 5392711.

It is an arithmetic number, because the mean of its divisors is an integer number (21570820).

Almost surely, 2^75497863 is an apocalyptic number.

75497863 is a deficient number, since it is larger than the sum of its proper divisors (10785417).

75497863 is a wasteful number, since it uses less digits than its factorization.

75497863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10785416.

The product of its digits is 1270080, while the sum is 49.

The square root of 75497863 is about 8688.9506270896. The cubic root of 75497863 is about 422.6474174837.

The spelling of 75497863 in words is "seventy-five million, four hundred ninety-seven thousand, eight hundred sixty-three".