75929489 has 2 divisors, whose sum is σ = 75929490. Its totient is φ = 75929488.

The previous prime is 75929467. The next prime is 75929521. The reversal of 75929489 is 98492957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71233600 + 4695889 = 8440^2 + 2167^2 .

It is an emirp because it is prime and its reverse (98492957) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75929489 - 2²⁰ = 74880913 is a prime.

It is a super-2 number, since 2×75929489² = 11530574599602242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75929489.

It is not a weakly prime, because it can be changed into another prime (75929419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37964744 + 37964745.

It is an arithmetic number, because the mean of its divisors is an integer number (37964745).

Almost surely, 2^75929489 is an apocalyptic number.

It is an amenable number.

75929489 is a deficient number, since it is larger than the sum of its proper divisors (1).

75929489 is an equidigital number, since it uses as much as digits as its factorization.

75929489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 53.

The square root of 75929489 is about 8713.7528654421. The cubic root of 75929489 is about 423.4513213328.

It can be divided in two parts, 7592948 and 9, that added together give a palindrome (7592957).

The spelling of 75929489 in words is "seventy-five million, nine hundred twenty-nine thousand, four hundred eighty-nine".