75061989 has 24 divisors (see below), whose sum is σ = 114872160. Its totient is φ = 47099232.

The previous prime is 75061969. The next prime is 75061993. The reversal of 75061989 is 98916057.

It is not a de Polignac number, because 75061989 - 2⁵ = 75061957 is a prime.

It is a super-2 number, since 2×75061989² = 11268604385272242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75061969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26527 + ... + 29219.

It is an arithmetic number, because the mean of its divisors is an integer number (4786340).

Almost surely, 2^75061989 is an apocalyptic number.

It is an amenable number.

75061989 is a deficient number, since it is larger than the sum of its proper divisors (39810171).

75061989 is a wasteful number, since it uses less digits than its factorization.

75061989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 75061989 is about 8663.8322352179. The cubic root of 75061989 is about 421.8324863167.

The spelling of 75061989 in words is "seventy-five million, sixty-one thousand, nine hundred eighty-nine".