750989 has 4 divisors (see below), whose sum is σ = 771324. Its totient is φ = 730656.

The previous prime is 750983. The next prime is 751001. The reversal of 750989 is 989057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989057 = 89 ⋅11113.

It can be written as a sum of positive squares in 2 ways, for example, as 532900 + 218089 = 730^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 750989 - 2¹⁶ = 685453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (750983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10112 + ... + 10185.

It is an arithmetic number, because the mean of its divisors is an integer number (192831).

2⁷⁵⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

750989 is a deficient number, since it is larger than the sum of its proper divisors (20335).

750989 is a wasteful number, since it uses less digits than its factorization.

750989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 750989 is about 866.5962150852. The cubic root of 750989 is about 90.8959483728.

The spelling of 750989 in words is "seven hundred fifty thousand, nine hundred eighty-nine".