1087426693 has 2 divisors, whose sum is σ = 1087426694. Its totient is φ = 1087426692.

The previous prime is 1087426673. The next prime is 1087426727. The reversal of 1087426693 is 3966247801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558518689 + 528908004 = 23633^2 + 22998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087426693 - 2⁵ = 1087426661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087426643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543713346 + 543713347.

It is an arithmetic number, because the mean of its divisors is an integer number (543713347).

Almost surely, 2^1087426693 is an apocalyptic number.

It is an amenable number.

1087426693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087426693 is an equidigital number, since it uses as much as digits as its factorization.

1087426693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1087426693 is about 32976.1533990852. The cubic root of 1087426693 is about 1028.3319508790.

The spelling of 1087426693 in words is "one billion, eighty-seven million, four hundred twenty-six thousand, six hundred ninety-three".