1097675989 has 4 divisors (see below), whose sum is σ = 1145401056. Its totient is φ = 1049950924.

The previous prime is 1097675899. The next prime is 1097676049. The reversal of 1097675989 is 9895767901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9895767901 = 10789 ⋅917209.

It is a cyclic number.

It is not a de Polignac number, because 1097675989 - 2⁷ = 1097675861 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 (1097675489) 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, 23862499 + ... + 23862544.

It is an arithmetic number, because the mean of its divisors is an integer number (286350264).

Almost surely, 2^1097675989 is an apocalyptic number.

It is an amenable number.

1097675989 is a deficient number, since it is larger than the sum of its proper divisors (47725067).

1097675989 is an equidigital number, since it uses as much as digits as its factorization.

1097675989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47725066.

The product of its (nonzero) digits is 8573040, while the sum is 61.

The square root of 1097675989 is about 33131.1935945568. The cubic root of 1097675989 is about 1031.5526239909.

The spelling of 1097675989 in words is "one billion, ninety-seven million, six hundred seventy-five thousand, nine hundred eighty-nine".