1011009977 has 4 divisors (see below), whose sum is σ = 1045872420. Its totient is φ = 976147536.

The previous prime is 1011009973. The next prime is 1011009991. The reversal of 1011009977 is 7799001101.

It is a happy number.

1011009977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7799001101 = 17041 ⋅457661.

It can be written as a sum of positive squares in 2 ways, for example, as 393189241 + 617820736 = 19829^2 + 24856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011009977 - 2² = 1011009973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011009973) 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, 17431178 + ... + 17431235.

It is an arithmetic number, because the mean of its divisors is an integer number (261468105).

Almost surely, 2^1011009977 is an apocalyptic number.

It is an amenable number.

1011009977 is a deficient number, since it is larger than the sum of its proper divisors (34862443).

1011009977 is an equidigital number, since it uses as much as digits as its factorization.

1011009977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34862442.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 1011009977 is about 31796.3830804700. The cubic root of 1011009977 is about 1003.6566052740.

The spelling of 1011009977 in words is "one billion, eleven million, nine thousand, nine hundred seventy-seven".