78070754 has 4 divisors (see below), whose sum is σ = 117106134. Its totient is φ = 39035376.

The previous prime is 78070693. The next prime is 78070771. The reversal of 78070754 is 45707087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45707087 = 41 ⋅1114807.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 22344529 = 7465^2 + 4727^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19517687 + ... + 19517690.

Almost surely, 2^78070754 is an apocalyptic number.

78070754 is a deficient number, since it is larger than the sum of its proper divisors (39035380).

78070754 is a wasteful number, since it uses less digits than its factorization.

78070754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39035379.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 78070754 is about 8835.7656148180. The cubic root of 78070754 is about 427.3950204477.

The spelling of 78070754 in words is "seventy-eight million, seventy thousand, seven hundred fifty-four".