78336674 has 8 divisors (see below), whose sum is σ = 126543900. Its totient is φ = 36155376.

The previous prime is 78336673. The next prime is 78336679. The reversal of 78336674 is 47663387.

It can be written as a sum of positive squares in 2 ways, for example, as 69839449 + 8497225 = 8357^2 + 2915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78336674² = 12273268986764552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78336673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506449 + ... + 1506500.

Almost surely, 2^78336674 is an apocalyptic number.

78336674 is a deficient number, since it is larger than the sum of its proper divisors (48207226).

78336674 is a wasteful number, since it uses less digits than its factorization.

78336674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012964.

The product of its digits is 508032, while the sum is 44.

The square root of 78336674 is about 8850.8007547340. The cubic root of 78336674 is about 427.8797264458.

The spelling of 78336674 in words is "seventy-eight million, three hundred thirty-six thousand, six hundred seventy-four".