875124797 has 4 divisors (see below), whose sum is σ = 877074300. Its totient is φ = 873175296.

The previous prime is 875124773. The next prime is 875124799. The reversal of 875124797 is 797421578.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797421578 = 2 ⋅398710789.

It can be written as a sum of positive squares in 2 ways, for example, as 443565721 + 431559076 = 21061^2 + 20774^2 .

It is a cyclic number.

It is not a de Polignac number, because 875124797 - 2¹⁶ = 875059261 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 (875124799) 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, 974078 + ... + 974975.

It is an arithmetic number, because the mean of its divisors is an integer number (219268575).

Almost surely, 2^875124797 is an apocalyptic number.

It is an amenable number.

875124797 is a deficient number, since it is larger than the sum of its proper divisors (1949503).

875124797 is a wasteful number, since it uses less digits than its factorization.

875124797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949502.

The product of its digits is 987840, while the sum is 50.

The square root of 875124797 is about 29582.5082945987. The cubic root of 875124797 is about 956.5110612384.

The spelling of 875124797 in words is "eight hundred seventy-five million, one hundred twenty-four thousand, seven hundred ninety-seven".