78070082 has 4 divisors (see below), whose sum is σ = 117105126. Its totient is φ = 39035040.

The previous prime is 78070079. The next prime is 78070093. The reversal of 78070082 is 28007087.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 83521 = 8831^2 + 289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19517519 + ... + 19517522.

Almost surely, 2^78070082 is an apocalyptic number.

78070082 is a deficient number, since it is larger than the sum of its proper divisors (39035044).

78070082 is a wasteful number, since it uses less digits than its factorization.

78070082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39035043.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 78070082 is about 8835.7275874712. The cubic root of 78070082 is about 427.3937941657.

The spelling of 78070082 in words is "seventy-eight million, seventy thousand, eighty-two".