78279695 has 16 divisors (see below), whose sum is σ = 105561792. Its totient is φ = 55292160.

The previous prime is 78279673. The next prime is 78279697. The reversal of 78279695 is 59697287.

It is not a de Polignac number, because 78279695 - 2¹⁶ = 78214159 is a prime.

It is a super-2 number, since 2×78279695² = 12255421298586050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78279697) 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 15 ways as a sum of consecutive naturals, for example, 24686 + ... + 27675.

It is an arithmetic number, because the mean of its divisors is an integer number (6597612).

Almost surely, 2^78279695 is an apocalyptic number.

78279695 is a deficient number, since it is larger than the sum of its proper divisors (27282097).

78279695 is a wasteful number, since it uses less digits than its factorization.

78279695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52402.

The product of its digits is 1905120, while the sum is 53.

The square root of 78279695 is about 8847.5813079056. The cubic root of 78279695 is about 427.7759603503.

The spelling of 78279695 in words is "seventy-eight million, two hundred seventy-nine thousand, six hundred ninety-five".