1084105947 has 4 divisors (see below), whose sum is σ = 1445474600. Its totient is φ = 722737296.

The previous prime is 1084105931. The next prime is 1084105949. The reversal of 1084105947 is 7495014801.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1084105947 - 2⁴ = 1084105931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1084105949) 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, 180684322 + ... + 180684327.

It is an arithmetic number, because the mean of its divisors is an integer number (361368650).

Almost surely, 2^1084105947 is an apocalyptic number.

1084105947 is a deficient number, since it is larger than the sum of its proper divisors (361368653).

1084105947 is an equidigital number, since it uses as much as digits as its factorization.

1084105947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361368652.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1084105947 is about 32925.7641824757. The cubic root of 1084105947 is about 1027.2841220390.

The spelling of 1084105947 in words is "one billion, eighty-four million, one hundred five thousand, nine hundred forty-seven".