78459682 has 24 divisors (see below), whose sum is σ = 137227500. Its totient is φ = 33546240.

The previous prime is 78459679. The next prime is 78459707. The reversal of 78459682 is 28695487.

It can be written as a sum of positive squares in 2 ways, for example, as 75707401 + 2752281 = 8701^2 + 1659^2 .

It is a super-2 number, since 2×78459682² = 12311843399082248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62194 + ... + 63442.

Almost surely, 2^78459682 is an apocalyptic number.

78459682 is a deficient number, since it is larger than the sum of its proper divisors (58767818).

78459682 is a wasteful number, since it uses less digits than its factorization.

78459682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1899 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 78459682 is about 8857.7470047411. The cubic root of 78459682 is about 428.1035684088.

The spelling of 78459682 in words is "seventy-eight million, four hundred fifty-nine thousand, six hundred eighty-two".