42966709 has 2 divisors, whose sum is σ = 42966710. Its totient is φ = 42966708.

The previous prime is 42966653. The next prime is 42966727. The reversal of 42966709 is 90766924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24502500 + 18464209 = 4950^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 42966709 - 2¹⁵ = 42933941 is a prime.

It is a super-2 number, since 2×42966709² = 3692276164581362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42966409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21483354 + 21483355.

It is an arithmetic number, because the mean of its divisors is an integer number (21483355).

Almost surely, 2^42966709 is an apocalyptic number.

It is an amenable number.

42966709 is a deficient number, since it is larger than the sum of its proper divisors (1).

42966709 is an equidigital number, since it uses as much as digits as its factorization.

42966709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 42966709 is about 6554.8996178431. The cubic root of 42966709 is about 350.2493705837.

The spelling of 42966709 in words is "forty-two million, nine hundred sixty-six thousand, seven hundred nine".