78414275 has 6 divisors (see below), whose sum is σ = 97233732. Its totient is φ = 62731400.

The previous prime is 78414269. The next prime is 78414299. The reversal of 78414275 is 57241487.

It is not a de Polignac number, because 78414275 - 2¹⁸ = 78152131 is a prime.

It is a super-2 number, since 2×78414275² = 12297597047551250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1568261 + ... + 1568310.

It is an arithmetic number, because the mean of its divisors is an integer number (16205622).

Almost surely, 2^78414275 is an apocalyptic number.

78414275 is a deficient number, since it is larger than the sum of its proper divisors (18819457).

78414275 is a wasteful number, since it uses less digits than its factorization.

78414275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136581 (or 3136576 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 78414275 is about 8855.1835102385. The cubic root of 78414275 is about 428.0209669613.

The spelling of 78414275 in words is "seventy-eight million, four hundred fourteen thousand, two hundred seventy-five".