78190748 has 12 divisors (see below), whose sum is σ = 137071032. Its totient is φ = 39027600.

The previous prime is 78190747. The next prime is 78190759. The reversal of 78190748 is 84709187.

It is a super-2 number, since 2×78190748² = 12227586145599008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78190699 and 78190708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78190747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14303 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (11422586).

Almost surely, 2^78190748 is an apocalyptic number.

It is an amenable number.

78190748 is a deficient number, since it is larger than the sum of its proper divisors (58880284).

78190748 is a wasteful number, since it uses less digits than its factorization.

78190748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33892 (or 33890 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 78190748 is about 8842.5532511826. The cubic root of 78190748 is about 427.6138757087.

The spelling of 78190748 in words is "seventy-eight million, one hundred ninety thousand, seven hundred forty-eight".