75497887 has 8 divisors (see below), whose sum is σ = 79679600. Its totient is φ = 71337024.

The previous prime is 75497857. The next prime is 75497893. The reversal of 75497887 is 78879457.

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 75497887 - 2¹⁹ = 74973599 is a prime.

It is a super-3 number, since 3×75497887³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75497827) 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, 2539 + ... + 12547.

It is an arithmetic number, because the mean of its divisors is an integer number (9959950).

Almost surely, 2^75497887 is an apocalyptic number.

75497887 is a deficient number, since it is larger than the sum of its proper divisors (4181713).

75497887 is a wasteful number, since it uses less digits than its factorization.

75497887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425.

The product of its digits is 3951360, while the sum is 55.

The square root of 75497887 is about 8688.9520081538. The cubic root of 75497887 is about 422.6474622688.

The spelling of 75497887 in words is "seventy-five million, four hundred ninety-seven thousand, eight hundred eighty-seven".