78741982 has 16 divisors (see below), whose sum is σ = 130667904. Its totient is φ = 35287000.

The previous prime is 78741979. The next prime is 78741991. The reversal of 78741982 is 28914787.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23644 + ... + 26767.

It is an arithmetic number, because the mean of its divisors is an integer number (8166744).

Almost surely, 2^78741982 is an apocalyptic number.

78741982 is a deficient number, since it is larger than the sum of its proper divisors (51925922).

78741982 is a wasteful number, since it uses less digits than its factorization.

78741982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50495.

The product of its digits is 225792, while the sum is 46.

The square root of 78741982 is about 8873.6679000287. The cubic root of 78741982 is about 428.6163964773.

The spelling of 78741982 in words is "seventy-eight million, seven hundred forty-one thousand, nine hundred eighty-two".