78145327 has 16 divisors (see below), whose sum is σ = 87377920. Its totient is φ = 69400800.

The previous prime is 78145321. The next prime is 78145339. The reversal of 78145327 is 72354187.

It is a cyclic number.

It is not a de Polignac number, because 78145327 - 2¹¹ = 78143279 is a prime.

It is a super-2 number, since 2×78145327² = 12213384263873858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78145321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84574 + ... + 85492.

It is an arithmetic number, because the mean of its divisors is an integer number (5461120).

Almost surely, 2^78145327 is an apocalyptic number.

78145327 is a deficient number, since it is larger than the sum of its proper divisors (9232593).

78145327 is a wasteful number, since it uses less digits than its factorization.

78145327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174.

The product of its digits is 47040, while the sum is 37.

The square root of 78145327 is about 8839.9845588100. The cubic root of 78145327 is about 427.5310593806.

The spelling of 78145327 in words is "seventy-eight million, one hundred forty-five thousand, three hundred twenty-seven".