1490899 has 2 divisors, whose sum is σ = 1490900. Its totient is φ = 1490898.

The previous prime is 1490893. The next prime is 1490921. The reversal of 1490899 is 9980941.

It is a weak prime.

It is an emirp because it is prime and its reverse (9980941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1490899 - 2¹³ = 1482707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1490893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745449 + 745450.

It is an arithmetic number, because the mean of its divisors is an integer number (745450).

2^1490899 is an apocalyptic number.

1490899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490899 is an equidigital number, since it uses as much as digits as its factorization.

1490899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1490899 is about 1221.0237507928. The cubic root of 1490899 is about 114.2394423543.

The spelling of 1490899 in words is "one million, four hundred ninety thousand, eight hundred ninety-nine".