75449963 has 8 divisors (see below), whose sum is σ = 77411376. Its totient is φ = 73494400.

The previous prime is 75449951. The next prime is 75449989. The reversal of 75449963 is 36994457.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75449963 - 2⁸ = 75449707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75445963) 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, 38108 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (9676422).

Almost surely, 2^75449963 is an apocalyptic number.

75449963 is a deficient number, since it is larger than the sum of its proper divisors (1961413).

75449963 is a wasteful number, since it uses less digits than its factorization.

75449963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925.

The product of its digits is 816480, while the sum is 47.

The square root of 75449963 is about 8686.1938154752. The cubic root of 75449963 is about 422.5580149784.

The spelling of 75449963 in words is "seventy-five million, four hundred forty-nine thousand, nine hundred sixty-three".