78273059 has 8 divisors (see below), whose sum is σ = 82948320. Its totient is φ = 73729600.

The previous prime is 78273037. The next prime is 78273073. The reversal of 78273059 is 95037287.

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

It is a de Polignac number, because none of the positive numbers 2^k-78273059 is a prime.

It is a super-2 number, since 2×78273059² = 12253343530434962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (78273079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31727 + ... + 34104.

It is an arithmetic number, because the mean of its divisors is an integer number (10368540).

Almost surely, 2^78273059 is an apocalyptic number.

78273059 is a deficient number, since it is larger than the sum of its proper divisors (4675261).

78273059 is a wasteful number, since it uses less digits than its factorization.

78273059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65901.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 78273059 is about 8847.2062822114. The cubic root of 78273059 is about 427.7638720666.

The spelling of 78273059 in words is "seventy-eight million, two hundred seventy-three thousand, fifty-nine".