78234763 has 2 divisors, whose sum is σ = 78234764. Its totient is φ = 78234762.

The previous prime is 78234677. The next prime is 78234769. The reversal of 78234763 is 36743287.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78234763 - 2⁹ = 78234251 is a prime.

It is a super-2 number, since 2×78234763² = 12241356283332338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78234769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39117381 + 39117382.

It is an arithmetic number, because the mean of its divisors is an integer number (39117382).

Almost surely, 2^78234763 is an apocalyptic number.

78234763 is a deficient number, since it is larger than the sum of its proper divisors (1).

78234763 is an equidigital number, since it uses as much as digits as its factorization.

78234763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 40.

The square root of 78234763 is about 8845.0417183866. The cubic root of 78234763 is about 427.6940978777.

The spelling of 78234763 in words is "seventy-eight million, two hundred thirty-four thousand, seven hundred sixty-three".