78267463 has 2 divisors, whose sum is σ = 78267464. Its totient is φ = 78267462.

The previous prime is 78267451. The next prime is 78267487. The reversal of 78267463 is 36476287.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78267463 is a prime.

It is a super-2 number, since 2×78267463² = 12251591528912738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78267493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39133731 + 39133732.

It is an arithmetic number, because the mean of its divisors is an integer number (39133732).

Almost surely, 2^78267463 is an apocalyptic number.

78267463 is a deficient number, since it is larger than the sum of its proper divisors (1).

78267463 is an equidigital number, since it uses as much as digits as its factorization.

78267463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 43.

The square root of 78267463 is about 8846.8900185319. The cubic root of 78267463 is about 427.7536777388.

The spelling of 78267463 in words is "seventy-eight million, two hundred sixty-seven thousand, four hundred sixty-three".