75909849 has 16 divisors (see below), whose sum is σ = 105019200. Its totient is φ = 48714176.

The previous prime is 75909839. The next prime is 75909851. The reversal of 75909849 is 94890957.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 75909849 - 2⁵ = 75909817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75909839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32722 + ... + 34964.

It is an arithmetic number, because the mean of its divisors is an integer number (6563700).

Almost surely, 2^75909849 is an apocalyptic number.

It is an amenable number.

75909849 is a deficient number, since it is larger than the sum of its proper divisors (29109351).

75909849 is a wasteful number, since it uses less digits than its factorization.

75909849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 75909849 is about 8712.6258384026. The cubic root of 75909849 is about 423.4148080658.

The spelling of 75909849 in words is "seventy-five million, nine hundred nine thousand, eight hundred forty-nine".