78526783 has 2 divisors, whose sum is σ = 78526784. Its totient is φ = 78526782.

The previous prime is 78526769. The next prime is 78526787. The reversal of 78526783 is 38762587.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78526783 - 2¹³ = 78518591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78526787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39263391 + 39263392.

It is an arithmetic number, because the mean of its divisors is an integer number (39263392).

Almost surely, 2^78526783 is an apocalyptic number.

78526783 is a deficient number, since it is larger than the sum of its proper divisors (1).

78526783 is an equidigital number, since it uses as much as digits as its factorization.

78526783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 46.

The square root of 78526783 is about 8861.5338965667. The cubic root of 78526783 is about 428.2255758379.

The spelling of 78526783 in words is "seventy-eight million, five hundred twenty-six thousand, seven hundred eighty-three".