1081689417 has 32 divisors (see below), whose sum is σ = 1670389760. Its totient is φ = 691033680.

The previous prime is 1081689407. The next prime is 1081689431. The reversal of 1081689417 is 7149861801.

It is a happy number.

It is not a de Polignac number, because 1081689417 - 2²⁴ = 1064912201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081689407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79938 + ... + 92484.

It is an arithmetic number, because the mean of its divisors is an integer number (52199680).

Almost surely, 2^1081689417 is an apocalyptic number.

It is an amenable number.

1081689417 is a deficient number, since it is larger than the sum of its proper divisors (588700343).

1081689417 is a wasteful number, since it uses less digits than its factorization.

1081689417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690 (or 12684 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1081689417 is about 32889.0470673749. The cubic root of 1081689417 is about 1026.5202638239.

The spelling of 1081689417 in words is "one billion, eighty-one million, six hundred eighty-nine thousand, four hundred seventeen".