1090791947 has 16 divisors (see below), whose sum is σ = 1303142400. Its totient is φ = 893337120.

The previous prime is 1090791943. The next prime is 1090791953. The reversal of 1090791947 is 7491970901.

It is a cyclic number.

It is not a de Polignac number, because 1090791947 - 2² = 1090791943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1090791943) 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, 14672 + ... + 48957.

It is an arithmetic number, because the mean of its divisors is an integer number (81446400).

Almost surely, 2^1090791947 is an apocalyptic number.

1090791947 is a deficient number, since it is larger than the sum of its proper divisors (212350453).

1090791947 is an equidigital number, since it uses as much as digits as its factorization.

1090791947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63746.

The product of its (nonzero) digits is 142884, while the sum is 47.

The square root of 1090791947 is about 33027.1395521925. The cubic root of 1090791947 is about 1029.3916497461.

The spelling of 1090791947 in words is "one billion, ninety million, seven hundred ninety-one thousand, nine hundred forty-seven".