340147447 has 2 divisors, whose sum is σ = 340147448. Its totient is φ = 340147446.

The previous prime is 340147433. The next prime is 340147459. The reversal of 340147447 is 744741043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340147447 - 2²⁷ = 205929719 is a prime.

It is a super-4 number, since 4×340147447⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340177447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170073723 + 170073724.

It is an arithmetic number, because the mean of its divisors is an integer number (170073724).

Almost surely, 2^340147447 is an apocalyptic number.

340147447 is a deficient number, since it is larger than the sum of its proper divisors (1).

340147447 is an equidigital number, since it uses as much as digits as its factorization.

340147447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 340147447 is about 18443.0866993570. The cubic root of 340147447 is about 698.0540833510.

The spelling of 340147447 in words is "three hundred forty million, one hundred forty-seven thousand, four hundred forty-seven".