1097440693 has 2 divisors, whose sum is σ = 1097440694. Its totient is φ = 1097440692.

The previous prime is 1097440657. The next prime is 1097440709. The reversal of 1097440693 is 3960447901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 767400804 + 330039889 = 27702^2 + 18167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097440693 - 2⁹ = 1097440181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097440493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548720346 + 548720347.

It is an arithmetic number, because the mean of its divisors is an integer number (548720347).

Almost surely, 2^1097440693 is an apocalyptic number.

It is an amenable number.

1097440693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097440693 is an equidigital number, since it uses as much as digits as its factorization.

1097440693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1097440693 is about 33127.6424304538. The cubic root of 1097440693 is about 1031.4789114218.

The spelling of 1097440693 in words is "one billion, ninety-seven million, four hundred forty thousand, six hundred ninety-three".