42706361 has 2 divisors, whose sum is σ = 42706362. Its totient is φ = 42706360.

The previous prime is 42706351. The next prime is 42706369. The reversal of 42706361 is 16360724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 20757136 = 4685^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 42706361 - 2²² = 38512057 is a prime.

It is not a weakly prime, because it can be changed into another prime (42706369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21353180 + 21353181.

It is an arithmetic number, because the mean of its divisors is an integer number (21353181).

Almost surely, 2^42706361 is an apocalyptic number.

It is an amenable number.

42706361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42706361 is an equidigital number, since it uses as much as digits as its factorization.

42706361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 42706361 is about 6535.0104055005. The cubic root of 42706361 is about 349.5405154139.

The spelling of 42706361 in words is "forty-two million, seven hundred six thousand, three hundred sixty-one".