1077757994 has 4 divisors (see below), whose sum is σ = 1616636994. Its totient is φ = 538878996.

The previous prime is 1077757981. The next prime is 1077757999. The reversal of 1077757994 is 4997577701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4997577701 = 23 ⋅217285987.

It can be written as a sum of positive squares in only one way, i.e., 1012066969 + 65691025 = 31813^2 + 8105^2 .

It is not an unprimeable number, because it can be changed into a prime (1077757999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269439497 + ... + 269439500.

Almost surely, 2^1077757994 is an apocalyptic number.

1077757994 is a deficient number, since it is larger than the sum of its proper divisors (538879000).

1077757994 is an equidigital number, since it uses as much as digits as its factorization.

1077757994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538878999.

The product of its (nonzero) digits is 3889620, while the sum is 56.

The square root of 1077757994 is about 32829.2246938608. The cubic root of 1077757994 is about 1025.2751175835.

The spelling of 1077757994 in words is "one billion, seventy-seven million, seven hundred fifty-seven thousand, nine hundred ninety-four".