1097389907 has 2 divisors, whose sum is σ = 1097389908. Its totient is φ = 1097389906.

The previous prime is 1097389903. The next prime is 1097389921. The reversal of 1097389907 is 7099837901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097389907 - 2² = 1097389903 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097389903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548694953 + 548694954.

It is an arithmetic number, because the mean of its divisors is an integer number (548694954).

Almost surely, 2^1097389907 is an apocalyptic number.

1097389907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097389907 is an equidigital number, since it uses as much as digits as its factorization.

1097389907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 53.

The square root of 1097389907 is about 33126.8759015999. The cubic root of 1097389907 is about 1031.4630000089.

The spelling of 1097389907 in words is "one billion, ninety-seven million, three hundred eighty-nine thousand, nine hundred seven".