875489091 has 16 divisors (see below), whose sum is σ = 1215586560. Its totient is φ = 559792800.

The previous prime is 875489081. The next prime is 875489101. The reversal of 875489091 is 190984578.

It is an interprime number because it is at equal distance from previous prime (875489081) and next prime (875489101).

It is not a de Polignac number, because 875489091 - 2¹¹ = 875487043 is a prime.

It is a super-2 number, since 2×875489091² = 1532962296920012562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (875489081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20185 + ... + 46458.

It is an arithmetic number, because the mean of its divisors is an integer number (75974160).

Almost surely, 2^875489091 is an apocalyptic number.

875489091 is a deficient number, since it is larger than the sum of its proper divisors (340097469).

875489091 is a wasteful number, since it uses less digits than its factorization.

875489091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66826.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 875489091 is about 29588.6649073594. The cubic root of 875489091 is about 956.6437672259.

The spelling of 875489091 in words is "eight hundred seventy-five million, four hundred eighty-nine thousand, ninety-one".