1083977969 has 4 divisors (see below), whose sum is σ = 1084238400. Its totient is φ = 1083717540.

The previous prime is 1083977933. The next prime is 1083977981. The reversal of 1083977969 is 9697793801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9697793801 = 179 ⋅54177619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1083977969 is a prime.

It is a super-2 number, since 2×1083977969² = 2350016474554729922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1083977989) 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, 123869 + ... + 132330.

It is an arithmetic number, because the mean of its divisors is an integer number (271059600).

Almost surely, 2^1083977969 is an apocalyptic number.

It is an amenable number.

1083977969 is a deficient number, since it is larger than the sum of its proper divisors (260431).

1083977969 is an equidigital number, since it uses as much as digits as its factorization.

1083977969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260430.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The square root of 1083977969 is about 32923.8206926231. The cubic root of 1083977969 is about 1027.2436970414.

The spelling of 1083977969 in words is "one billion, eighty-three million, nine hundred seventy-seven thousand, nine hundred sixty-nine".