1090799977 has 2 divisors, whose sum is σ = 1090799978. Its totient is φ = 1090799976.

The previous prime is 1090799959. The next prime is 1090800037. The reversal of 1090799977 is 7799970901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 766403856 + 324396121 = 27684^2 + 18011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1090799977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1090799477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545399988 + 545399989.

It is an arithmetic number, because the mean of its divisors is an integer number (545399989).

Almost surely, 2^1090799977 is an apocalyptic number.

It is an amenable number.

1090799977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090799977 is an equidigital number, since it uses as much as digits as its factorization.

1090799977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250423, while the sum is 58.

The square root of 1090799977 is about 33027.2611186577. The cubic root of 1090799977 is about 1029.3941757379.

The spelling of 1090799977 in words is "one billion, ninety million, seven hundred ninety-nine thousand, nine hundred seventy-seven".