78265303 has 2 divisors, whose sum is σ = 78265304. Its totient is φ = 78265302.

The previous prime is 78265301. The next prime is 78265321. The reversal of 78265303 is 30356287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78265303 - 2¹ = 78265301 is a prime.

It is a super-2 number, since 2×78265303² = 12250915307363618, which contains 22 as substring.

Together with 78265301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78265301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39132651 + 39132652.

It is an arithmetic number, because the mean of its divisors is an integer number (39132652).

Almost surely, 2^78265303 is an apocalyptic number.

78265303 is a deficient number, since it is larger than the sum of its proper divisors (1).

78265303 is an equidigital number, since it uses as much as digits as its factorization.

78265303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 78265303 is about 8846.7679408923. The cubic root of 78265303 is about 427.7497427002.

The spelling of 78265303 in words is "seventy-eight million, two hundred sixty-five thousand, three hundred three".