1127379397 has 2 divisors, whose sum is σ = 1127379398. Its totient is φ = 1127379396.

The previous prime is 1127379389. The next prime is 1127379403. The reversal of 1127379397 is 7939737211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 894847396 + 232532001 = 29914^2 + 15249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127379397 - 2³ = 1127379389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1127379397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127379347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563689698 + 563689699.

It is an arithmetic number, because the mean of its divisors is an integer number (563689699).

Almost surely, 2^1127379397 is an apocalyptic number.

It is an amenable number.

1127379397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127379397 is an equidigital number, since it uses as much as digits as its factorization.

1127379397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 500094, while the sum is 49.

The square root of 1127379397 is about 33576.4708836411. The cubic root of 1127379397 is about 1040.7746315233.

The spelling of 1127379397 in words is "one billion, one hundred twenty-seven million, three hundred seventy-nine thousand, three hundred ninety-seven".