78599445 has 16 divisors (see below), whose sum is σ = 125892672. Its totient is φ = 41875200.

The previous prime is 78599429. The next prime is 78599453. The reversal of 78599445 is 54499587.

It is not a de Polignac number, because 78599445 - 2⁴ = 78599429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15834 + ... + 20196.

It is an arithmetic number, because the mean of its divisors is an integer number (7868292).

Almost surely, 2^78599445 is an apocalyptic number.

It is an amenable number.

78599445 is a deficient number, since it is larger than the sum of its proper divisors (47293227).

78599445 is a wasteful number, since it uses less digits than its factorization.

78599445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572.

The product of its digits is 1814400, while the sum is 51.

The square root of 78599445 is about 8865.6328031337. The cubic root of 78599445 is about 428.3576162843.

The spelling of 78599445 in words is "seventy-eight million, five hundred ninety-nine thousand, four hundred forty-five".