78926338 has 4 divisors (see below), whose sum is σ = 118389510. Its totient is φ = 39463168.

The previous prime is 78926333. The next prime is 78926383. The reversal of 78926338 is 83362987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83362987 = 2539 ⋅32833.

It can be written as a sum of positive squares in only one way, i.e., 51079609 + 27846729 = 7147^2 + 5277^2 .

It is a super-3 number, since 3×78926338³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78926333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19731583 + ... + 19731586.

Almost surely, 2^78926338 is an apocalyptic number.

78926338 is a deficient number, since it is larger than the sum of its proper divisors (39463172).

78926338 is a wasteful number, since it uses less digits than its factorization.

78926338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39463171.

The product of its digits is 435456, while the sum is 46.

The square root of 78926338 is about 8884.0496396632. The cubic root of 78926338 is about 428.9506375647.

The spelling of 78926338 in words is "seventy-eight million, nine hundred twenty-six thousand, three hundred thirty-eight".