1390680899 has 2 divisors, whose sum is σ = 1390680900. Its totient is φ = 1390680898.

The previous prime is 1390680887. The next prime is 1390680911. The reversal of 1390680899 is 9980860931.

It is a balanced prime because it is at equal distance from previous prime (1390680887) and next prime (1390680911).

It is a cyclic number.

It is not a de Polignac number, because 1390680899 - 2⁴ = 1390680883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1390680899.

It is not a weakly prime, because it can be changed into another prime (1390680839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695340449 + 695340450.

It is an arithmetic number, because the mean of its divisors is an integer number (695340450).

Almost surely, 2^1390680899 is an apocalyptic number.

1390680899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390680899 is an equidigital number, since it uses as much as digits as its factorization.

1390680899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1390680899 is about 37291.8342134039. The cubic root of 1390680899 is about 1116.2012294882.

The spelling of 1390680899 in words is "one billion, three hundred ninety million, six hundred eighty thousand, eight hundred ninety-nine".