1077819949 has 4 divisors (see below), whose sum is σ = 1081285920. Its totient is φ = 1074353980.

The previous prime is 1077819947. The next prime is 1077820001. The reversal of 1077819949 is 9499187701.

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: 9499187701 = 229 ⋅41481169.

It is a cyclic number.

It is not a de Polignac number, because 1077819949 - 2¹ = 1077819947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1077819949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077819947) 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, 1732519 + ... + 1733140.

It is an arithmetic number, because the mean of its divisors is an integer number (270321480).

Almost surely, 2^1077819949 is an apocalyptic number.

It is an amenable number.

1077819949 is a deficient number, since it is larger than the sum of its proper divisors (3465971).

1077819949 is an equidigital number, since it uses as much as digits as its factorization.

1077819949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465970.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The square root of 1077819949 is about 32830.1682755358. The cubic root of 1077819949 is about 1025.2947632130.

The spelling of 1077819949 in words is "one billion, seventy-seven million, eight hundred nineteen thousand, nine hundred forty-nine".