147899783 has 2 divisors, whose sum is σ = 147899784. Its totient is φ = 147899782.

The previous prime is 147899777. The next prime is 147899803. The reversal of 147899783 is 387998741.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147899783 is a prime.

It is a super-2 number, since 2×147899783² = 43748691622894178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147899183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73949891 + 73949892.

It is an arithmetic number, because the mean of its divisors is an integer number (73949892).

Almost surely, 2^147899783 is an apocalyptic number.

147899783 is a deficient number, since it is larger than the sum of its proper divisors (1).

147899783 is an equidigital number, since it uses as much as digits as its factorization.

147899783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 56.

The square root of 147899783 is about 12161.4054697638. The cubic root of 147899783 is about 528.8378272736.

The spelling of 147899783 in words is "one hundred forty-seven million, eight hundred ninety-nine thousand, seven hundred eighty-three".