78074895 has 32 divisors (see below), whose sum is σ = 135751680. Its totient is φ = 38171520.

The previous prime is 78074891. The next prime is 78074911. The reversal of 78074895 is 59847087.

It is a Cunningham number, because it is equal to 94⁴-1.

It is not a de Polignac number, because 78074895 - 2² = 78074891 is a prime.

It is a super-2 number, since 2×78074895² = 12191378458522050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78074891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4417 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (4242240).

Almost surely, 2^78074895 is an apocalyptic number.

78074895 is a deficient number, since it is larger than the sum of its proper divisors (57676785).

78074895 is a wasteful number, since it uses less digits than its factorization.

78074895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 78074895 is about 8835.9999434133. Note that the first 4 decimals coincide. The cubic root of 78074895 is about 427.4025768902.

The spelling of 78074895 in words is "seventy-eight million, seventy-four thousand, eight hundred ninety-five".