75489696 has 72 divisors (see below), whose sum is σ = 218243844. Its totient is φ = 24744960.

The previous prime is 75489691. The next prime is 75489709. The reversal of 75489696 is 69698457.

75489696 is a `hidden beast` number, since 7 + 548 + 9 + 6 + 96 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69555600 + 5934096 = 8340^2 + 2436^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (75489691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15420 + ... + 19716.

Almost surely, 2^75489696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75489696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109121922).

75489696 is an abundant number, since it is smaller than the sum of its proper divisors (142754148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75489696 is a wasteful number, since it uses less digits than its factorization.

75489696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374 (or 4363 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 75489696 is about 8688.4806496878. The cubic root of 75489696 is about 422.6321769378.

The spelling of 75489696 in words is "seventy-five million, four hundred eighty-nine thousand, six hundred ninety-six".