147998407 has 2 divisors, whose sum is σ = 147998408. Its totient is φ = 147998406.

The previous prime is 147998393. The next prime is 147998437. The reversal of 147998407 is 704899741.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147998407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147998437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73999203 + 73999204.

It is an arithmetic number, because the mean of its divisors is an integer number (73999204).

Almost surely, 2^147998407 is an apocalyptic number.

147998407 is a deficient number, since it is larger than the sum of its proper divisors (1).

147998407 is an equidigital number, since it uses as much as digits as its factorization.

147998407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 147998407 is about 12165.4595885236. The cubic root of 147998407 is about 528.9553494498.

The spelling of 147998407 in words is "one hundred forty-seven million, nine hundred ninety-eight thousand, four hundred seven".