339742747 has 2 divisors, whose sum is σ = 339742748. Its totient is φ = 339742746.

The previous prime is 339742727. The next prime is 339742757. The reversal of 339742747 is 747247933.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339742747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 339742697 and 339742706.

It is not a weakly prime, because it can be changed into another prime (339742717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169871373 + 169871374.

It is an arithmetic number, because the mean of its divisors is an integer number (169871374).

Almost surely, 2^339742747 is an apocalyptic number.

339742747 is a deficient number, since it is larger than the sum of its proper divisors (1).

339742747 is an equidigital number, since it uses as much as digits as its factorization.

339742747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 46.

The square root of 339742747 is about 18432.1118431937. Note that the first 3 decimals coincide. The cubic root of 339742747 is about 697.7771303193. Note that the first 3 decimals are identical.

The spelling of 339742747 in words is "three hundred thirty-nine million, seven hundred forty-two thousand, seven hundred forty-seven".