78234082 has 4 divisors (see below), whose sum is σ = 117351126. Its totient is φ = 39117040.

The previous prime is 78234073. The next prime is 78234097. The reversal of 78234082 is 28043287.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28043287 = 4327 ⋅6481.

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 5285401 = 8541^2 + 2299^2 .

It is a super-2 number, since 2×78234082² = 12241143172765448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19558519 + ... + 19558522.

Almost surely, 2^78234082 is an apocalyptic number.

78234082 is a deficient number, since it is larger than the sum of its proper divisors (39117044).

78234082 is a wasteful number, since it uses less digits than its factorization.

78234082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39117043.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 78234082 is about 8845.0032221588. The cubic root of 78234082 is about 427.6928569097.

The spelling of 78234082 in words is "seventy-eight million, two hundred thirty-four thousand, eighty-two".