397324783 has 2 divisors, whose sum is σ = 397324784. Its totient is φ = 397324782.

The previous prime is 397324771. The next prime is 397324801. The reversal of 397324783 is 387423793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397324783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397324723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198662391 + 198662392.

It is an arithmetic number, because the mean of its divisors is an integer number (198662392).

Almost surely, 2^397324783 is an apocalyptic number.

397324783 is a deficient number, since it is larger than the sum of its proper divisors (1).

397324783 is an equidigital number, since it uses as much as digits as its factorization.

397324783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The square root of 397324783 is about 19933.0073747039. The cubic root of 397324783 is about 735.1600268585.

The spelling of 397324783 in words is "three hundred ninety-seven million, three hundred twenty-four thousand, seven hundred eighty-three".