378098999 has 2 divisors, whose sum is σ = 378099000. Its totient is φ = 378098998.

The previous prime is 378098951. The next prime is 378099019. The reversal of 378098999 is 999890873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378098999 - 2¹² = 378094903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378098099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189049499 + 189049500.

It is an arithmetic number, because the mean of its divisors is an integer number (189049500).

Almost surely, 2^378098999 is an apocalyptic number.

378098999 is a deficient number, since it is larger than the sum of its proper divisors (1).

378098999 is an equidigital number, since it uses as much as digits as its factorization.

378098999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 378098999 is about 19444.7679081032. The cubic root of 378098999 is about 723.1057958787.

The spelling of 378098999 in words is "three hundred seventy-eight million, ninety-eight thousand, nine hundred ninety-nine".