75729489 has 8 divisors (see below), whose sum is σ = 110152032. Its totient is φ = 45896640.

The previous prime is 75729481. The next prime is 75729503. The reversal of 75729489 is 98492757.

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

It is not a de Polignac number, because 75729489 - 2³ = 75729481 is a prime.

It is a super-2 number, since 2×75729489² = 11469911008402242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75729481) 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, 1147384 + ... + 1147449.

It is an arithmetic number, because the mean of its divisors is an integer number (13769004).

Almost surely, 2^75729489 is an apocalyptic number.

It is an amenable number.

75729489 is a deficient number, since it is larger than the sum of its proper divisors (34422543).

75729489 is a wasteful number, since it uses less digits than its factorization.

75729489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294847.

The product of its digits is 1270080, while the sum is 51.

The square root of 75729489 is about 8702.2691868271. The cubic root of 75729489 is about 423.0792009481.

The spelling of 75729489 in words is "seventy-five million, seven hundred twenty-nine thousand, four hundred eighty-nine".