1088779897 has 2 divisors, whose sum is σ = 1088779898. Its totient is φ = 1088779896.

The previous prime is 1088779877. The next prime is 1088779981. The reversal of 1088779897 is 7989778801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067720976 + 21058921 = 32676^2 + 4589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088779897 - 2¹¹ = 1088777849 is a prime.

It is a super-2 number, since 2×1088779897² = 2370883328222661218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1088779877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544389948 + 544389949.

It is an arithmetic number, because the mean of its divisors is an integer number (544389949).

Almost surely, 2^1088779897 is an apocalyptic number.

It is an amenable number.

1088779897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088779897 is an equidigital number, since it uses as much as digits as its factorization.

1088779897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14224896, while the sum is 64.

The square root of 1088779897 is about 32996.6649375357. The cubic root of 1088779897 is about 1028.7583293805.

The spelling of 1088779897 in words is "one billion, eighty-eight million, seven hundred seventy-nine thousand, eight hundred ninety-seven".