42463391 has 2 divisors, whose sum is σ = 42463392. Its totient is φ = 42463390.

The previous prime is 42463373. The next prime is 42463409. The reversal of 42463391 is 19336424.

It is a balanced prime because it is at equal distance from previous prime (42463373) and next prime (42463409).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42463391 is a prime.

It is a Chen prime.

It is equal to p_2574077 and since 42463391 and 2574077 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42463321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21231695 + 21231696.

It is an arithmetic number, because the mean of its divisors is an integer number (21231696).

Almost surely, 2^42463391 is an apocalyptic number.

42463391 is a deficient number, since it is larger than the sum of its proper divisors (1).

42463391 is an equidigital number, since it uses as much as digits as its factorization.

42463391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 42463391 is about 6516.3940181668. The cubic root of 42463391 is about 348.8763721143.

The spelling of 42463391 in words is "forty-two million, four hundred sixty-three thousand, three hundred ninety-one".