78954005 has 16 divisors (see below), whose sum is σ = 102501504. Its totient is φ = 58036800.

The previous prime is 78953989. The next prime is 78954011. The reversal of 78954005 is 50045987.

It is not a de Polignac number, because 78954005 - 2⁴ = 78953989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78954005.

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, 12080 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (6406344).

Almost surely, 2^78954005 is an apocalyptic number.

It is an amenable number.

78954005 is a deficient number, since it is larger than the sum of its proper divisors (23547499).

78954005 is a wasteful number, since it uses less digits than its factorization.

78954005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 78954005 is about 8885.6066196968. The cubic root of 78954005 is about 429.0007534540. Note that the first 3 decimals are identical.

The spelling of 78954005 in words is "seventy-eight million, nine hundred fifty-four thousand, five".