78048215 has 32 divisors (see below), whose sum is σ = 110726784. Its totient is φ = 51701760.

The previous prime is 78048211. The next prime is 78048227. The reversal of 78048215 is 51284087.

It is not a de Polignac number, because 78048215 - 2² = 78048211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78048211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196397 + ... + 196793.

It is an arithmetic number, because the mean of its divisors is an integer number (3460212).

Almost surely, 2^78048215 is an apocalyptic number.

78048215 is a deficient number, since it is larger than the sum of its proper divisors (32678569).

78048215 is a wasteful number, since it uses less digits than its factorization.

78048215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 78048215 is about 8834.4900814931. The cubic root of 78048215 is about 427.3538868903.

The spelling of 78048215 in words is "seventy-eight million, forty-eight thousand, two hundred fifteen".